Quote Originally Posted by rthomas View Post
I couldn't find anything about this lens online, but when I saw your pictures, I thought "it looks like an enlarging lens." I have a Wollensak 162mm f/4.5 "Enlarging Raptar" that looks a lot like this lens, and it's probably from the 1950s. I suppose your Schneider mystery lens could also be a projector lens, since it is pretty fast.
Thanks, but I'm fairly confident it's not an enlarging lens as Xenars where always a 'taking' lens. They where (and still are) used in a range of cameras over many decades. The pics I've posted don't properly show the scale of the lens which is actually quite large and heavy, but it's proprtions certainly make it look like any normal enlarging lens. The lens is about 3 inches across and weighs approx 550 grams.