This model has a hinged back with exposure guide.
The camera could be used with Rolleikin I to use 35mm film.
Shutter includes a release safety lock and speeds work about right as does the aperture which is smooth. Focussing is also smooth.
Both lenses are clean and clear with very minor dust as expected with a camera of this age (70yrs).
Viewfinder is bright and clear with cross-hair screen and pop-up magnifying lens.
The only faults I’ve found, I can’t get the self-timer to work, I suspect it has seized having never been used, and the small black fabric cover on the top film spindle is missing.
Cosmetically it is excellent for the age of the camera with just very minor marks from use.
The case is also in excellent condition, with no fraying or opening of the stitching and a strong usable strap.