A Zeiss Ikon Nettar 512 camera, manufactured from 1937 to about 1940. The bellows and body look fine, and the shuuter speeds sound OK.
The lens is a Novar f4.5/75 mm.
This wee machine takes 16 pictures (2 1/4" x 1 3/4") on a 120 roll; a nice horizontal format for landscape, and a sweet vertical for portraits.
I paid $60 Cdn., and it came with a beat-up original leather case & the print manual. I also bought 5 rolls of out of date Tmax 100 120 film.
So analogue medium format - I'm back!😀