This camera is made mostly of Bakelite and produced by the North American Manufacturing Company based in Chicago, Illinois. It has a 50mm Graf lens and about 1/50th of a second shutter with settings of instant and time. The camera uses 127 film and embossed on the inside of the back cover is “USE STANDARD VEST POCKET FILM”. Also embossed inside the back cover is “1 5/8 x 2 ½ 4 x 6 cm” the size of the film frames on 127 film. It also has two red lens round windows in the back for lining up each frame. The camera has two ridged round knobs on the bottom of the body just to supply hard point for the film real inside (no other purpose). A spring release button on the side of the body releases the back cover. The film advance knob is on the top and only turns in one direction and that is to the next frame. The bottom of the camera also has a ¼” 20 thread tripod mount hard point. The dual red windows, where a particular frame number on the film backing paper was advanced to appear first in one, then the other window for perfect frame alignment was a design feature of 1930 like the Zeiss Ikon Kolibri the first camera with this feature. This camera was introduced in 1939 and this introduction date information was obtained by mauro.corneo, a member of this site. Thanks.