It is a version of the Agfa Box 50. The pull out tab allows you change the aperture from f/11 to f/16 and also a yellow filter.
Vintage Agfa Synchro Box Camera
Agfa Synchro Vintage Camera Box 1930s-1940s Made In Germany Untested
AGFA Color-Telinear 90mm f4 Prime Portrait Lens for Agfa Ambi Silette, Exc++ Box
1951 Walt Disney Bambi German Board Game Complete w/ Box Figures Spiel Germany
Vintage 1951 Go Fish Card Game Ed-U-Cards Shapes Colors Complete 36 Cards Box
Agfa Karat Classic 35mm Vintage Camera with Agfa Xenon f2 50mm Lens
