Rolleiflex old standard model
The Rolleiflex original standard model was made by Franke & Heidecke in Braunschweig, Germany from 1932 to 1938. This camera is also referred to as the "Old Standard". Obviouslly, this was not the name at the introduction, it became known by this name after the introduction of the New Standard in 1939. These names are not to be found anywhere on the camera; Rolleiflexes are generally dated and identified by serial numbers.
Franke & Heidecke had introduced the TLR design in 1929 with their Original Rolleiflex 6x6. The Old Standard had several improvements over the original model, like lever film transport, an amazing sportsfinder and improved shutter speeds
Finder
This is the best part about this Rolleiflex. When looking into the waist level finder, you find a relatively clear ground glass screen.
shutter
Compur rapid B, 1-500. reportedly versions wit a 1-300 compur also exist
Lens
Heidosmat viewing lens carl zeiss tessar 75 /4.5 or 3.8 or 3.5 uncoated focusing knob engraved, two turns, moves front plate