VIEW-MASTER personal STEREO CAMERA, USA   c1952
After the success of the VM reels and viewers  - there was a "market demand" for a camera to create your own stereo VM pictures ! The camera was very popular in America in the 1950s.
The camera  took 69 stereo-pairs of  12X13 mm frame size on a slides 35mm film. Using a special cutter you could cut the frames into an empty VM-reel.
Camera spec:
Lenses: anastigmat f 3.5  25mm  ;  fixed focus ; speeds from B up to 1/100   ( Ser# 03460)
The film was wound twice through the camera while the lenses raised or lower into two positions (depending on the direction of the film) thus filling the film with pairs of pic. both in length and in width.