The ingeniously named Montanus Montana is a capable, if bulky 35mm viewfinder camera similar to the Tower 51.
It’s most notable features are a rotary aperture and unusual frame counter in addition to a cluttered focus scale which may lead to a lot if guess-and-shoot photographic outcomes.

 

Make Montanus
Model Montana
Year 1956
Format 35mm
Shutter Prontor-SVS
Speed B, 2 – 1/200
Lens Deltamon Anastigmat
f3.5 45mm
Focus 3.5ft to ∞
Aperture f3.5 – f22 (rotary)
Light Meter No
Rangefinder No