Model marks appeared on the Beirette in the "vsn" version only. But there is no marks "vsn" versions also. It is the new model of Beirette series, with light plastic body, black or chrome. There are some cosmetic versions during its manufacturing period.
Beier Beirette vsn image by Süleyman Demir (Image rights)
Specifications
Lens: Meritar 45mm f/2.8 filter slip-on serial no.none
Aperture: up to f/22 setting: ring and scale on the lens-shutter barrel, ring coupled with four weather symbols
Focus range: 0.6-10m +inf
Focusing: manual front cell focusing; ring, scale and DOF scale on front of the lens