nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
The story of this telescope restoration begins in April 2008. The scope shows up on ebay in California. The seller stated he bought it the weekend before at a garage sale and didn't know anything about it. 'doublestar' first correctly identified as a mount made by Bill Schaefer and this was confirmed by 'tim53'. The thread to the discussion can be found here: http://tinyurl.com/lv7rjp
The scope was purchased by a gentleman in Long Island, NY with the buy-it-now option and was shipped from CA to NY. Soon after receiving it however, the new owner felt the project was more than he wanted to undertake and the scope soon appeared on Astromart. Regrettably for me the Brandon eyepieces that came with the scope were sold separately.
I had followed the ebay auction and discussion here with interest. When the scope appeared on Astromart, I contacted the seller and proposed a trade for one of mine. A deal was struck and I came into possession of the Schaefer scope last spring.
During the discussion on CN in April, Clive Gibbons was first to reference the great website dedicated to Bill Schaefer by Larry Adkins which can be found here: http://tinyurl.com/mjt83h Larry has very kindly given me permission to reproduce photos from his website in my posts here. He has also sent me high resolution files of the website photos. I won't go into Bill Schaefer's history here as everything I know I learned from Larry's site. However, I can confirm with almost 100% certainty what others have suspected, that this scope is perhaps the earliest known example of a Schaefer mount and telescope.
--------------------
1958 Schaefer 8" f/8
Unitron 4" Mod 150
Zeiss AS63/840
Zeiss Asiola
Orange C8, C11
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
2
--------------------
1958 Schaefer 8" f/8
Unitron 4" Mod 150
Zeiss AS63/840
Zeiss Asiola
Orange C8, C11
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
3
--------------------
1958 Schaefer 8" f/8
Unitron 4" Mod 150
Zeiss AS63/840
Zeiss Asiola
Orange C8, C11
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
Charlton Flats 1957 (or '58) courtesy Larry Adkins
--------------------
1958 Schaefer 8" f/8
Unitron 4" Mod 150
Zeiss AS63/840
Zeiss Asiola
Orange C8, C11
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
close-up
--------------------
1958 Schaefer 8" f/8
Unitron 4" Mod 150
Zeiss AS63/840
Zeiss Asiola
Orange C8, C11
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
The owner before me had posted that the mirror was an 8" f/8 and was signed "J. Ballas 1/58 F.L. 63 1/4” At the time no one knew of a J. Ballas. Has this changed? Is there a way to research membership in the astronomy clubs in that area from the late 50's?
My personal hope was that Mr. Ballas was a long forgotten optician who worked for Tom Cave. Alas, that's probably not the case. The mirrors needed recoating and I sent them to Cary at Optic Wave Labs. Cary tested the primary and reported that overall smoothness was good but it had a turned down edge and a Strehl ratio of .858. Cary refigured the mirror at my request and it is now 1/12 wave with a Strehl of .98! The guy is an artist!
So my working hypothesis is that J. Ballas was an amateur who ground his own mirror and commissioned Bill Schaefer to build a telescope around it. I wouldn't think a commercial optics producer would have sold Bill a mirror with a turned edge. What do you think?
The pier and legs are obviously Cave. It appears the tube is as well (or Parks) with a lovely riveted aluminum trim ring on top. See the thread on the 1952 Cave here http://tinyurl.com/kqgonl
--------------------
1958 Schaefer 8" f/8
Unitron 4" Mod 150
Zeiss AS63/840
Zeiss Asiola
Orange C8, C11
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
Just about everything else looks to have been made by Bill. As an amateur machinist myself, I really can appreciate the time that went into this scope. The mirror cell is a casting that removes from the tube with 3 knurled bolts. The rotating tube rings are machined castings as well as the mount of course. The finder and rings are completely home brew with illuminated reticule. The focuser is helical. At first I figured Bill made that too. However it bears many similarities to a helical focuser I had on a 6" f/4 Cave. Any thoughts?
--------------------
1958 Schaefer 8" f/8
Unitron 4" Mod 150
Zeiss AS63/840
Zeiss Asiola
Orange C8, C11
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
and the focuser from the cave 6" f/4.
--------------------
1958 Schaefer 8" f/8
Unitron 4" Mod 150
Zeiss AS63/840
Zeiss Asiola
Orange C8, C11
|
tim53
Pooh-Bah
Reged: 12/17/04
Posts: 1459
Loc: Highland Park, CA
|
|
Awesome!
I'm glad to see this one surface again! I had considered buying it myself, but decided that the BIN price was too rich for my blood at the time. Before I could change my mind, though, it had sold.
It's sad that the original eyepieces aren't with it. But I doubt that will detract from it's value, considering you know it's history pretty well.
I don't think I'd restore it. Unless there's some damage that's not visible somewhere, I'd just clean it up and enjoy using it!
I seem to recall that the original ad said that the drive motor didn't work? it might be possible to find an original replacement, or if not, a bolt-on new motor that won't require modification of the original scope, to get it fully functional again.
Thanks for posting!
-Tim.
--------------------
"We`re just waiting looking skyward as the days come down.
Someone promised there`d be answers, if we stayed around."
-Orchestral Maneuvers in the Dark, "The Romance of the Telescope"
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
The overall condition of the scope was good, just very dirty. The tube is a wonderful retro robin’s egg blue. It appeared to have been painted as opposed to having a colored gel coat. There were the remains of a typed list of messier objects which had been taped to the tube, a remnant of star parties gone by. The aluminum parts had a weird greenish cast to them. It may have been a clear lacquer that oxidized.
So, my intention is to restore the telescope with all the respect it deserves, paint the tube with color-matched paint, polish and paint the aluminum parts, clean, regrease, adjust, etc. The only additions or modifications will be reversible and would likely have been done by Bill himself had it been the norm back then. I hope to bring it to Stellafane in August and enter it in the judging in the restoration category. It will be my first Stellafane in about 10 years and my son’s first (he’s 2)! It’s about 80 percent complete so I think we’ll make it (we better, it’s already registered for judging!).
I’ve got plenty more photos and more to say but it’s getting late. Thanks for reading my post and please ask questions.
--------------------
1958 Schaefer 8" f/8
Unitron 4" Mod 150
Zeiss AS63/840
Zeiss Asiola
Orange C8, C11
|
tim53
Pooh-Bah
Reged: 12/17/04
Posts: 1459
Loc: Highland Park, CA
|
|
Hm... I wonder if Ballas was the original owner who ground his own mirror and asked Bill to make the scope for him?
Anybody recognize that name from the olden days?
-Tim.
--------------------
"We`re just waiting looking skyward as the days come down.
Someone promised there`d be answers, if we stayed around."
-Orchestral Maneuvers in the Dark, "The Romance of the Telescope"
|
clintwhitman
Caveman
Reged: 01/01/07
Posts: 2435
Loc: ValVerde CA(SoEasyaCavemanCanD...
|
|
The focuser is not a sky Micro like cave sold or even close. The one on your cave looks like one someone polished. I have one of those on my 1960 Cave Criter. The one on your new scope looks like a prototype, I would say Bill or some other awsome ATMer made it. 
--------------------
Clint&Debbie Whitman (aveman
1960s 6"F15 Jaegers-Unipons by John Pons on a Byers 812, 1947 4" F15 TINSLEY, 1965 10" F8 CAVE, 1950 5CM & 6.5CM Nippon Kogakus (the twins), 1960s UNITRONS a 152 restored a 160 numbered green lens original mint a 114 original 50s mint, 1950s UNITRON M100 100mm F15 OTA, WO 80mm Florite, ASTROPHYSICS 155 EDFS on LOSMANDY G11, a bunch of Tascos,Sears Mayflowers The list goes on Add infinitum.
Edited by clintwhitman (06/11/09 11:08 PM)
|
clintwhitman
Caveman
Reged: 01/01/07
Posts: 2435
Loc: ValVerde CA(SoEasyaCavemanCanD...
|
|
Paul what you have there is the reason I collect telescopes!! Awsome job. Tim and I will be kicking ourselves over and over that we didnt have the time/money/sence to jump on that one. Good job.
--------------------
Clint&Debbie Whitman (aveman
1960s 6"F15 Jaegers-Unipons by John Pons on a Byers 812, 1947 4" F15 TINSLEY, 1965 10" F8 CAVE, 1950 5CM & 6.5CM Nippon Kogakus (the twins), 1960s UNITRONS a 152 restored a 160 numbered green lens original mint a 114 original 50s mint, 1950s UNITRON M100 100mm F15 OTA, WO 80mm Florite, ASTROPHYSICS 155 EDFS on LOSMANDY G11, a bunch of Tascos,Sears Mayflowers The list goes on Add infinitum.
|
JamesE
Pooh-Bah
Reged: 10/22/07
Posts: 1120
Loc: Westbank, BC, Canada
|
|
What a great story. Thanks for sharing.
--------------------
James
(Thanks to Attilla for the Clear Sky charts)
Current Projects : Tasco 15TEA - 3 inch pier mounted planetary scope
Priorities : Wife, Kids
|
Dr Morbius
scholastic sledgehammer
Reged: 02/06/07
Posts: 1721
|
|
An historic and soon to be beautiful scope! Good luck on the restoration!!
--------------------
Meade ETX-125
NightFire 6" f/8 Refractor with Moonlite focuser
Meade 14" LX200 S/C
D&G 10" f/15 Refractor with Parallax Mount
Little Giant 11x70mm Binos
I'm afraid of dying, but I've learned to live with it. ......Steve Perry
|
Lew Chilton
Pooh-Bah
Reged: 10/20/05
Posts: 1022
Loc: SoCal
|
|
The focuser looks like an esthetically superior version of the Carle photo-visual helical focuser, as sold by Tom Cave. It can be seen in the 1970s Cave accessory catalog, as viewed at Robert Provin's Classic Telescope Catalog website:
http://geogdata.csun.edu/~voltaire/classics/cave/caveacc.pdf
--------------------
I don't get no respect, but my scopes do! 
----------------------------------------------
1961 Swift 60mm model 839 (2); 2003 TV-102/GM-8; 1959 8" f/6 Treckerscope; 1959 8" f/7.4 Murray Scope; 1959 Fecker Celestar-4; 1978 4" Edmund Astroscan; c. 1986 4-inch Celestron-Vixen SP-C102; c. 1950 20X60 Saturn spotting scope; 1963 7X50 Nippon Kogaku binoculars; Unitron #114 alt-az mount (Swifty-tron)
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
Tim, As I posted above, I agree that Mr. Ballas might have been an amateur that ground the mirror and had Bill make the rest of the scope. However, the dates don't quite add up. The mirror is dated 1/58 but several photos of the scope on Larry's website are dated 1957. It's not clear yet how Larry derived this date and it's not unreasonable to assume they were taken in '58 after completion of the scope. Would Bill have kept the scope long enough after completion to take several photos with it and his other scopes? Maybe Mr. Ballas is the gentleman to the left of Bill in the Charlton Flats photo. Anybody recognize him?
--------------------
1958 Schaefer 8" f/8
Unitron 4" Mod 150
Zeiss AS63/840
Zeiss Asiola
Orange C8, C11
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
Clint,
Yes the focuser is very nicely made and the more I think about it, the less it reminds me of the Cave unit. Most likely Bill made this too from scratch. It polished up nicely. The helix rides on a ball plunger with a steel ball. I thought about replacing the ball plunger with one that has a nylon ball. It may help smooth out the feel a little bit. I'm only contemplating very small modifications that don't affect it cosmetically, are reversible and help with the function of the scope
--------------------
1958 Schaefer 8" f/8
Unitron 4" Mod 150
Zeiss AS63/840
Zeiss Asiola
Orange C8, C11
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
If you'll oblige me to continue, maybe the best approach is to start at the bottom and work my way up. The pier and legs are from Cave or whoever made them for Cave but Bill Made some interesting additions and modifications. Most obvious is the compass he added to the north leg. Obviously to help in aligning the mount. It doesn't swing right now but I'm sure I can get it to work. You'll note the bold "N" painted on the north leg and the corresponding position on the pier.
--------------------
1958 Schaefer 8" f/8
Unitron 4" Mod 150
Zeiss AS63/840
Zeiss Asiola
Orange C8, C11
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
compass closeup
--------------------
1958 Schaefer 8" f/8
Unitron 4" Mod 150
Zeiss AS63/840
Zeiss Asiola
Orange C8, C11
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
Bill filed notches into the bottoms of each leg and the base of the pier. One notch for the first leg, 2 for the second and 3 for the third. I think his intention was to ensure the same leg went in each position each time. This probably allowed quicker polar alignment if nothing changed between setups. Also, the notches could be easily felt in the dark.
You'll notice in the photo that Bill attached a cotter pin to a string on each leg. The pin fits in a hole drilled through the leg and pier. The purpose of this really perplexed me. I think the user would insert the pin and expand it inside the pier to prevent the leg from falling off accidentally if the pier was picked up and the thumb screws holding the leg on had loosened up. Just a guess.
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
Moving up, there's a nice little wooden shelf for 5 eyepieces and a barlow. A small pin keeps it horizontal and a spring wraps around the pier to hold it there. I don't have a photo of it but there's a piece of red vinyl that attaches to the pier above the shelf to keep dew and dust off the eyepieces.
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
Jumping ahead in the resto process, I'll show the mount. It consists of 5 aluminum castings. They are very nice with little porosity and good thickness. They remind me of the Russell Porter castings (many bronze) that I ogled as a kid at Stellafane.
Only problem is the machining of the plate where the tube rings attach made the metal too thin and it cracked at the hole for the rear ring. There are small blocks that provide backup for the bolts that hold the rings to the mount.
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
mount photo 2
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
The mount comes apart pretty easily.large knurled rings on the rear of the polar shaft and bottom of the dec shaft unscrew and the axes come out of the bearings with light taps. Bearings are ball, no tapered rollers here. There's a piece of white plastic that serves as a thrust bearing on the dec axis and the clutch behind the RA gear is a red plastic (phenolite?) disc with 30 steel balls set around the circumference. Tightening the knurled knob puts tension on the RA axis. The thumb screw tensions the dec axis.
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
disassembled mount 2. forgot to mention the gear is labeled 'Boston', apparently off-the-shelf.
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
The block that supports the worm gear is shimmed for backlash.
|
Lew Chilton
Pooh-Bah
Reged: 10/20/05
Posts: 1022
Loc: SoCal
|
|
Quote:
Tim, As I posted above, I agree that Mr. Ballas might have been an amateur that ground the mirror and had Bill make the rest of the scope. However, the dates don't quite add up... Maybe Mr. Ballas is the gentleman to the left of Bill in the Charlton Flats photo. Anybody recognize him?
Paul, I didn't start going to Charlton Flats star parties until 1960-1961, so I can't say that I remember Mr. Ballas.
If I knew just a little more about him - like his first name and where he lived - I might be able to identify him from the numerous Ballases that show up on the many California databases on Ancestry.com (for example, voter registration lists, street directories, and birth, marriage and death indexes).
I'm attaching a photo I took at a 1961 star party at Charlton Flats.
-Lew
--------------------
I don't get no respect, but my scopes do!
----------------------------------------------
1961 Swift 60mm model 839 (2); 2003 TV-102/GM-8; 1959 8" f/6 Treckerscope; 1959 8" f/7.4 Murray Scope; 1959 Fecker Celestar-4; 1978 4" Edmund Astroscan; c. 1986 4-inch Celestron-Vixen SP-C102; c. 1950 20X60 Saturn spotting scope; 1963 7X50 Nippon Kogaku binoculars; Unitron #114 alt-az mount (Swifty-tron)
|
Starman27
professor emeritus
Reged: 01/29/06
Posts: 579
Loc: Illinois, Iowa
|
|
What a great thread! Thanks for sharing your experiences as you move forward.
--------------------
Enjoy the dark,
Herman
Meade
14 LX200 GPS SMT
12 LX200 GPS
7 LX200 Maksutov
ETX 125
TAK FS128 NSV
Sky 90II
Lunt LS60ThaDS BF1200
Canon 5D Mark II
Illinois
Iowa
|
Lew Chilton
Pooh-Bah
Reged: 10/20/05
Posts: 1022
Loc: SoCal
|
|
I just dug up this picture from my personal archive. It's from a December 11, 1960 newspaper article about Tom Cave the Mars observer. He is shown at the eyepiece of his personal scope, a 12-inch Newt. mounted in his backyard observatory. (I'm pretty sure that Alika Herring made the mirror.)
I had the privilege of looking thru it on one or two occasions in the 1958-1960 timeframe when I was a guest at one of the meetings of the Excelsior Telescope Club held at Tom's home in Long Beach, California.
Note the mount: it is not an Astrola but appears to be a Bill Schaefer designed and built equatorial head - correct me if I'm wrong. (Also note the telephone wires strung over Tom's backyard!)
This scope was something like an f/7 or f/8, so Tom needed a stepladder or observing platform to reach the eyepiece. In this photo, he is seated on his observing platform for comfortable viewing.
--------------------
I don't get no respect, but my scopes do!
----------------------------------------------
1961 Swift 60mm model 839 (2); 2003 TV-102/GM-8; 1959 8" f/6 Treckerscope; 1959 8" f/7.4 Murray Scope; 1959 Fecker Celestar-4; 1978 4" Edmund Astroscan; c. 1986 4-inch Celestron-Vixen SP-C102; c. 1950 20X60 Saturn spotting scope; 1963 7X50 Nippon Kogaku binoculars; Unitron #114 alt-az mount (Swifty-tron)
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
Hey Lew,
Those are great photos of Chilton Flats and of Tom Cave's telescope. With regard to the similarity of Mr. Cave's mount to a Schaefer design, I refer the reader to Larry Adkin's Tom Cave website at: http://www.cerritos.edu/ladkins/Cave/thomas_cave_observatory.htm
Larry also has recognized the possible connection with this early mount.
Also, the original post about the ebay Schaefer telescope indicated that the seller bought the scope at garage sale in West Covina. Maybe Mr. Ballas lived in West Covina or nearby.
--------------------
1958 Schaefer 8" f/8
Unitron 4" Mod 150
Zeiss AS63/840
Zeiss Asiola
Orange C8, C11
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
Just a few photos to update you on the Schaefer progress. The mount is reassembled with clean, greased bearings. The optics are in the tube. It's looking great!
--------------------
1958 Schaefer 8" f/8
Unitron 4" Mod 150
Zeiss AS63/840
Zeiss Asiola
Orange C8, C11
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
another view
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
The next challenge! The motor does not turn but it vibrates like a synchronous motor does. Some reading online indicates that the typical problem with these is that oil in the gear reduction dries up seizing up the little gears. Looks like I'll be opening this thing up next.
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
Finally, can someone help me ID this plug? I need to buy the female plug end and it would help to I knew what to call it. As you can see, the 2 conductors are skewed at an angle and there is a tab on the ID that only allows the plug to go in at one orientation.
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
The ID of the hole is 11/16" and it's about the same deep. Ant good websites for electronics where I'd start looking?
|
nykaver
member
Reged: 11/07/07
Posts: 66
Loc: Danbury, CT
|
|
One more. Thanks!
|
tim53
Pooh-Bah
Reged: 12/17/04
Posts: 1459
Loc: Highland Park, CA
|
|
Wow!
That is looking NICE!
I wish I was more knowledgeable about electronics (my dad was the electrician, I'm the geologist!). But I'll bet that a good electric motor rebuilding outfit could restore it ...for a price, of course!
I eagerly await more!
-Tim.
--------------------
"We`re just waiting looking skyward as the days come down.
Someone promised there`d be answers, if we stayed around."
-Orchestral Maneuvers in the Dark, "The Romance of the Telescope"
|
Preston Smith
Military Observer
Reged: 04/24/05
Posts: 3449
Loc: Eureka, Pa
|
|
Quote:
The story of this telescope restoration begins in April 2008...
Outstanding thread Paul!
It's absolutely wonderful to see this scope coming back to life - even better than the original! Thank you for your commitment to this project and all the research and hard work you've invested into this Schaefer.
Great documentation. I would recommend that when you have completed this project that you submit all of this as an article / review to Cloudy Nights. They have a classic telescope section for articles / reviews.
--------------------
Preston
Lift your eyes and look to the heavens: Who created all these? He who brings out the starry host one by one, and calls them each by name. Because of His great power and mighty strength, not one of them is missing. Isaiah 40:26
SV115T,NHII,SV70,SV50 and Tele Vue Ranger
Vintage Refractors: Asahi-Pentax, Edmund Scientific, Tasco, Unitron
60mm Telescope Club
|
clintwhitman
Caveman
Reged: 01/01/07
Posts: 2435
Loc: ValVerde CA(SoEasyaCavemanCanD...
|
|
Paul Kudos to you on the restoration!! You have a fine and wonderfull piece of history there!! Lew as always your photos are incredible and will always be downloaded to your directory on the old PC... (aveman...
--------------------
Clint&Debbie Whitman (aveman
1960s 6"F15 Jaegers-Unipons by John Pons on a Byers 812, 1947 4" F15 TINSLEY, 1965 10" F8 CAVE, 1950 5CM & 6.5CM Nippon Kogakus (the twins), 1960s UNITRONS a 152 restored a 160 numbered green lens original mint a 114 original 50s mint, 1950s UNITRON M100 100mm F15 OTA, WO 80mm Florite, ASTROPHYSICS 155 EDFS on LOSMANDY G11, a bunch of Tascos,Sears Mayflowers The list goes on Add infinitum.
|
Lew Chilton
Pooh-Bah
Reged: 10/20/05
Posts: 1022
Loc: SoCal
|
|
Paul, incredible restoration!
It may be easier to replace the entire power connector assembly than to find a replacement power cord with that peculiar prong pattern.
We used to go to places like C&H Sales in Pasadena, CA (now out of business) or Apex Electronics near Pacoima, CA. Both specialized in surplus aerospace industry electronic and mechanical hardware. All the stuff was stacked to the rafters.
When John Pons, the refractor man, restored my 1964 Fisher 500C stereo receiver, he used humongous military spec. electrolytic capacitors from Apex to replace the original puny ones.
--------------------
I don't get no respect, but my scopes do!
----------------------------------------------
1961 Swift 60mm model 839 (2); 2003 TV-102/GM-8; 1959 8" f/6 Treckerscope; 1959 8" f/7.4 Murray Scope; 1959 Fecker Celestar-4; 1978 4" Edmund Astroscan; c. 1986 4-inch Celestron-Vixen SP-C102; c. 1950 20X60 Saturn spotting scope; 1963 7X50 Nippon Kogaku binoculars; Unitron #114 alt-az mount (Swifty-tron)
|
Previous
Index
Next
Threaded
Edit
Reply
Quote
[Re: 