In 1953 the Perlux II had an uncoupled rangefinder built into the top housing and was named the Perlux IIa. A rotating wheel on the top rear panel operated the rangefinder. Later that year the rangefinder was coupled and a wind lever replaced the wind knob. This camera was then imported by DeJur in 1957 and sold as the DeJur D-3. It has the same standard lens as the D-1 but in a less compact mount. The same tele and wide-angle lenses were offered, now rangefinder-coupled. The (still unbranded) shutter is a Prontor but with speeds 1sec to 1/300. On the rear of the D-3 you can see a cover where the uncoupled rangefinder wheel was located. “Made in Western Germany” is boldly stamped on the bases of both models. The body serial number is stamped into the base covering next to the tripod mount. While quite large in size it can be extremely difficult to read. Other lenses like the Staeble Lineogon, the Isco Isconar 1:2.8/50 and the Isco Westar 1:2.8/50 were delivered for the camera, beside cameras still with a Staeble-Kata.