This is a Zeiss Ikon Nettar 515 from around 1938. The Novar lens and Klio shutter were lower priced options in the Zeiss lineup of that era. It’s a compact folder with a typical leatherette-covered exterior. It has a folding “sport” viewfinder for composing the images.

This Zeiss Ikon Nettar 515 makes 4.5 cm x 6 cm negatives, so you can take 16 photos on one roll of 120 film. It’s a small and practical camera that fits in a jacket pocket. It is still possible to take lovely photos with this even after more than 80 years. I think the camera is lovely, too.