Chimney finder for Hasselblad 500 series in good working condition. Cosmetically shows wear but works fine. Blocks extraneous light, making focusing easier, but it does not correct the "flopped" image like a prism finder does. Some people have mounted them on Rolleiflex TLRs (Irving Penn, for one) but I have not done this. It would require an adapter. $45.00 plus USPS shipping in USA.