Type b signs:
Logo is engraved or silkscreened on a plastic plate
Rangefinder camera for 35mm film
Light meter not coupled
Speed: 1/1, 1/2, 1/4, 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500 and B
Screw Mount M39
first: Industar I-61 "Zebra"
later: Industar I-61L/D black
Lenses accept M 40.5x05mm filters
1980 59rub. 50kop
1988 75rub. 40kop
Set included leather case, one film cassette, lens cup, box, and manuals.
Serial #169381 from 25.VIII.1980 (fotoua.com)
Known serial number range (please extend the range with your serials):
7-digit serial number on the backside of the top:
#6504727(fotoua.com) to #8639223(fotoua.com)
It's sad that FED decided to stamp 6-digit serials on the bottom plate of the back door, because those doors can be accidently changed easily.
FED-3, Fed-4 and Fed-5 doors are the same, stamping the serial on the door might have simplified production.
There are big stamped serials (around 21mm long for 6 digits)
and small serials (around 13mm long for 6 digits).