This vintage Carl Zeiss Jena prism finder viewfinder is for use with Praktiflex FX and Praktica FX cameras. It comes in its original leather case. There is a light haze inside of it.
Zeiss Ikon
Linhof
A. Schact Ulm
Carl Zeiss Jena
Carl Zeiss Jena
Carl Zeiss Jena
Altix