This is a 135mm f4.7 Schneider Xenar in a "stuck" Synchro-Compur-D
shutter. The aperture works, but with difficulty. The shutter seems
stuck in the cocked position. It may or may not be repairable -- I
haven't had it checked, so bid accordingly.
The glass is coated. There are no scratches on the front element, but
a small 2-3 mm scratch on the rear element, about 2/3rd way toward the
edge. It is not deep, but it's visible on close examination -- you
can't see it in the photo above. Would I use this lens to take
pictures in its present condition? You bet, but that's just me.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330025272106
