The first (arrived) is a set of Canadian Military Binoculars. These are (made to Canada's spec) 7X50 Pentax Marine BIF's. They are stamped SO OPS in yellow down the side of each barrel. I am now sure these are mil-spec late model Pentax Marine Bins although with the lack of reference material on the net, I had questions on the exact version at first.
It is in excellent used shape with the usual minor paint chips that come from use. There are faint cleaning marks on the left eyepiece that are unseen in use. They are in great shape considering they are issue glass, having no fog and perfect objectives! I discovered the left eyepiece focus scale is off and noticed that a small mark has been etched into it's barrel to indicate the infinity setting. This field expedient fix works fine. They have a JB21 stamp on the hinge indicating final assembly by Kokisha Co. Ltd., Tokyo.
There were 3 sets of these and I bought the nicer pair issued to SO OPS (a Canadian military police support unit in Germany). This particular pair was issued and used in the 70's and 80's so I guess historically it's a Cold War era bin. I had a chance to get out with it today and was very impressed. Compared to my Steiner 7X50 M-22 Issue bins, no appreciable difference in performance was found, except the weight. The Canadian bins felt like they weighed twice as much as the Steiners.
Purchased as a knock around pair for my farm truck (the Steiner M-22's are getting very pricy to replace if lost/stolen), I am very happy with the purchase and can't wait to look at the night sky with them.
The second pair on the way is a very nice pair of used Nikon 7X50 IF HP WP Tropicals. They will be the match to my 10X70's of the same line. I'll post on them in this thread soon after they arrive sometime late next week!
Attached is a pic of the Canadian/Pentax bins.