Sorry Roman, the KMZ official site gives no indication of what happened or where the prototypes went, no doubt they'll appear on ebay some time!!! Meanwhile here is a translation of what it says about the camera. KADR means to frame.
Practically unknown design of small-sized rangefinder camera with central interlens shutter and interchangeable optics. Regular objective - version of Helios -44 (2/58). In addition to regular, it was planned to have three interchangeable lenses: 2,8/37 (most probably - the version of Mir -1); 3,5/80; 5,6/115. Shutter speeds: the camera had from 1 to 1/800 seconds and B: the combined with the viewfinder range-finder, the system of an automatic change of the field of sight in the dependent on the fitted objective (three positions - most probably to the field-of-view angles of objectives into 58, 80 and 115 mm), synchronisation with the flash bulbs (cable connection), double exposure prevention the self – resetting frame counter and removable back. Project in the form of advertising materials, it is traditional - without any indication of manufacturing concern, it was represented on the world exhibition in Brussels 1958. Project is interesting by the selection of objectives with the specially designed interlens shutter with the broad range of speeds The declared regular objective of camera sequence - Helios -44 has large rear apical focal length and was projected for the application in the SLR cameras (working the distance of the version of Helios -44 for the camera start it is 42 mm).
Cover of the advertising prospectus, prepared to the world exhibition 1958 in Brussels
Looks as though it could have been a nice camera!! ah well c'est la vie!!
