I'm not sure if this is the right place to put this post, but here goes anyway.. I've come into some lenses that I know nothing about. Not sure what to do with them, can anyone slap a ballpark value on them?
Schneider - Kreuznach -- Retina-Tele-Arton f:4/85mm
Schneider - Kreuznach -- Retina-Curtagon f:4/28mm
Carl Zeiss -- Pro-Tessar 1:4 f=85mm
Carl Zeiss -- Pro-Tessar 1:4 f=35mm