image by René Maly (Image rights)
Very simple box camera, looks like a TLR, but it is not.
The Inka has a fixed focus lens, and is completely made of bakelite and steel.
It has 2 f/stops and 3 shutter speeds from which the photographer can choose, Bulb, 1/25 and 1/75sec. The Inka produces 6x6 frames on rollfilm.
Made by Atak in Czech Republic, Czechoslovakia, c.1947 
- McKeown, James M. and Joan C. McKeown's Price Guide to Antique and Classic Cameras, 12th Edition, 2005-2006. USA, Centennial Photo Service, 2004. ISBN 0-931838-40-1 (hardcover). ISBN 0-931838-41-X (softcover). Page 86.