I have probably posted this elsewhere but at least this is in context here...
The lens is a Schneider-Kreuznach Xenon 40mm f/1.9 circa 1954. It comes from a Robot Star IIa camera and adapter is from Hawks Factory via eBay. The big thing in the front is the folding hood which fits snugly on the lens when stored.
I do like that look too - very retro to me. Certainly from an aesthetically pleasing point of view it's a winner - and we know it makes good pictures, too.