Hi dear colleagues!
Here in Brazil a friend of mine found and old reflector built around a heavy metal structure (look like a 2WW tank). He bought very cheap it and found a beautifull 12.5 inches (317.5 mm) f/6 mirror with 74.8 inches focal length. See attached images. My friend trashed to the junk yard the telescope structure and kept the primary and secondary mirrors to build a better project. (Please don't consider the mirror clips touching the mirror surface! I know this is totally wrong but as I've explained, the scope structure was awfull!).
From what the actual owner of the scope, who never fully mounted it, the scope was made from an engineer who brought the mirrors from the USA long time ago and according to him, the primary mirror was made by an ATMer. The question is, we're trying to find who could have produced this mirror...
As you can see it has a "LK" mark at the end of the "12 1/2" F6" spec. We think, perhaps we''re wrong of course, that this "LK" is some kind of signature...
First, I thought about Michael Lockwood. I've contacted him but he kindly answer me and explained that this "LK" i's not his signature and that he engraves the back of his mirrors with his own signature and other specs (date, FL., #number, etc). So our quest continue...
Does anybody have any ideas about what this "LK" may be? Who could be the ATMer who build this mirror? Or, if the original info is wrong, is this one a comercial product?
Did anyone ever find a mirror with this "LK" letters along the "diameter, f-ratio" spec at the border or perhaps at the mirror's base?
Thanks in advance for any help and insights to solve this riddle!
Clear skies for us all!