Rolleinar 2 for Rolleiflex TLR with size bay ii (baj 2) with leather case (used)
Close up attachment for Rolleiflex TLR's with bayonet size 2 - like 3.5E and 3.5F models. The thicker piece has a diopter and a prism to correct for parralax and goes on the viewing lens, the thinner one is just a diopter.
Condition is excellent. Comes with leather case as shown