Designed by Waaske, and produced by (initially) Franka and subsequently Wirgin factories in Germany, in the 60’s. At the time of its apparition, it was the smallest 16mm film camera on the market. A coupled light meter match needle type is present. This meter unit can dismounted off the camera, making it a smaller even package. Glass is a very good Xenar 25mm/2.8, which I find to be quite sharp.
It takes 16mm unperforated film , at least this is what I do since I bought it, back in the 90s. Once you tape de film leader to the take up spool, no need for sprockets and such. Film advance is by means of small lever underneath the camera, and that’s where the rewind crank is located, together with the frame counter.
The viewfinder is parallax marked, very helpful when framing that close shot. Close focus at 0.4m.
The aperture ranges from 2.8 to 16. A ring around the release button prevents accidental release. A central dial is responsible of the ASA setting of the film loaded. The button for disengaging the meter and setting the camera at 1/30 for flash photography is visible under the viewfinder.