Right now I can offer an Ensign Auto Range 220 (coupled rangefinder, distances in feet, Ensar triplet on 8-speed Epsilon shutter, automatic counter anddual format 6x6 & 6x4.5), a Hapo 66E (aka Balda Mess Baldax, uncoupled rangefinder, distances in meters, Pronto shutter with Haponar 75/3.5 lens, automatic frame counter, only for 6x6) and an Adox Golf (nice 6x9 viewfinder camera, also dual format although I don't have its mask, Schneider-Kreuznach Radionar 105/4.5 lens on Prontor-SV with the distances in meters)

They all work, of course. Let me know if you are interested in any and I can send you pictures from the camera and taken with the camera. I'm based in Europe, though.