Thanks very much for the info. I will email them.

Also, thanks for the link to starmor page. Mine is like the first one, top left with brass showing. I am missing two small screw on brass rings, but third one is present. Will see if I have any photos.

The 'starmorbi' is the one to have, but very rare. I saw a mint one in new york for 3K USD about 8 years ago, should have bought it. There are also some very large binoculars, as I'm sure you know. Very interesting and beautiful stuff.

I love all German made Zeiss optics!