The lens is small and compact, the original package included a case with a filter tray. In fact the lens has a bayonet lock, and can be separated in two to change filters (22.5mm) It was available in an amazing quantity of different bayonets.
There is a RICOH branded version with different look on rubber textures, but all have velvet lined material in the inner part of the small hood.
Among the versions there is a Minolta A version with contacts, it does not auto focus but can give focus confirmation and has electronic aperture control, allowing P exposure with MAXXUM – Minolta AF – Konica Minolta and Sony A bodies. “focus aid and programmable” on the lower part.
I’m looking forward to some info on this lens history. First of all the exact market introduction date…