I have the Voigtlander VF101. Its really a Rollei made by Rollei Singapore.
Great camera, but here's more about the lineage. Although production of the final cameras was by Rollei in Singapore, it really began life in Germany as a Zeiss Ikon product, after Zeiss Ikon had fully taken control of Voigtlander.
This is a shared design with the last Zeiss Ikon Contessa -- the Contessa S 312, which arrived on the market just as Zeiss Ikon shut down in the early 1970s.
Voigtlander was sold to Rollei, which then produced the VF101 and used the Voigtlander Icarex cameras as the basis for its own line of SLRs (the SL series). Throughout the 1970s, there were always a Voigtlander and a Rolleiflex version of its SLRs, ending with the SL 35 E. There was no comparable Voigtlander version of the SL 2000/3000 series.
Interestingly enough, Rollei never produced its own branded version of the VF101, but it probably didn't feel a need to do that, as it had its highly successful Rollei 35 cameras (Rollei 35, 35T[E], 35S[E] and the lesser B35, C35 and 35LED), as well as its Rollei XF 35.
The VF101 is a great little camera and can be easily converted to use a 3-volt lithium battery.