Hi Bob and Terra, thanks for the info. You got me thinking about The "triple alliance" of Bausch & Lomb (NY), Saegmuller (also NY), and Zeiss (Germany)". Until your post I never realized what that logo meant. I have an old B&L Microscope (pat. Feb 16 1897) that does not have the triple alliance logo. But the eyepiece and brass cases for the objectives do. I also have newer B & L accessories from I think the 20's or 30's that don't have the logo on them either. I have played around with the eyepieces in a telescope but haven't experimented with any of the objectives for projection yet, like some of the old lunar and planetary photographers did. I don't know what I'm waiting for, I've had this stuff for years.
Edited by A6Q6, 01 July 2015 - 03:20 PM.