How much could these sell for?

[Leah T]

[Aaron]

I believe that is a slip-on close-up filter, most likely for the higher end TLRs, or lenses with a pretty small diameter like those from the 50's and 60's. My guess would be between $10.00 and $20.00 for one of those.

[Peter de Graaff]

I have a set of four. The Zeiss Opton Proxar is a macro lens designed to be slipped over the 50mm lens on the Contaflex and Contarex. My set of four cost $20 but these can often go for a bit more
@grizzlysghost

[Leah T]

@grizzlysghost REALLY i have 2 of them!!

@peterdegraaff Awww Thank you so muchh for telling me!

Thank you sooooooo much guys!!!

[Leah T]

@peterdegraaff Oh and what camera do you use for them?