Another serie of the Revue 3, a FED 3b made for Foto-Quelle, West-Germany.
The body reads "Revue 3" in serigraphy. It was engraved on the precedent serie.
The lens is always the Fed/Industar-61 zebra (F421 by Princelle).
This camera is not so easy to find.
Foto-Quelle catalog Winter 1972/73, page 32:
DM 99 camera with Industar-61
DM 24,50 case
DM 99 Jupiter-12
DM 159 Jupiter-9
DM 119 Jupiter-11
DM 69 Uni-VF
Foto-Quelle catalog Winter 1975/76, page 14:
DM 99 camera with Industar-61
Pictured camera: #740608 (on the shoe).
Known serial number range (please extend the range with your serials):
7-digit serial number on the backside of the top:
#8503622(sovietcams.com) to #8540363(fotua.com)
6-digit serial number on the bottom plate of the back door:
#711591(Lenny) to #740608(pictured)