Kodak Projection Anastigmat 105mm F:4.5 s/n none $20

Made in USA Retaining Ring(about 39mm?) Metal front cap

Appears to be in very good condition, never used by myself, based on Kodak enlarging lens that I use, my guess is that this is a very good lens.

Pictures available
http://www.apug.org/forums/forum379/...rger-lens.html