Pionyr, bakelite simple camera

I finally cleaned the shutter and made it fire most of the time...

I used a DIY mask for 4.5x6 frames

I loaded a Kodak Portra 160 film, I had some success only in bright conditions
samples

Pionyr bakelite camera

The Pionyr is a bakelite camera made in Czechoslovakia in the 50s.
It has an Instant shutter speed (1/30sec?) and a B. Choice of 2 apertures. Takes 120 film. The lens barrel unscrews forward and must be turned to a position indicated by the symbols on the metal plate for correct focusing.

I will clean the shutter and test it later.