I checked my FED NKVD cameras again. Turned out I have 9, instead of just 5 which I originally thought
🙂.
The concentric pattern on the shutter button appears on two of them, but variants several thousand numbers apart.
One (SN58 XXX- five digits) has the same shutter button. But has the toilet seat top, tabbed shoe, and three screws under the rewind knob. Yours (SN 76299) has the cornered top, and may have been made after the changes (no more oval toilet seat styles, tabbed shoes, or screws under the RW).
Two other (SN 155 XXX and 119 XXX -six digits) have the same shutter buttons too. All the detailing is the same as the later FED-1. Both are engraved "КОМБИНАТ" on top. Other than this, everything else seen on them are the same as your camera.
Another one, with a 5 digit SN (81X XX), made after your camera, also has the same features as your camera- no tab on the shoe, but no concentric patterns on the shutter button.
Most of my NKVD have oval "toilet seat" styles. These have 5 digit serial numbers. One more characteristic common among them is the small pin that holds the base plate in place. This is smaller than the one found in Leica or later FED or Zorki. The highest one amongst these (81 XXX) has the styling of the later FED- angled top cover, no tab in the shoe, and large baseplate pin.
The two NKVD with six digit numbers follow the styling of the later FED.
One more thing which changed in Kiev is the spool spindle. The early ones were full and extended all the way to the base plate. The later ones- all of the 1g- had half-spindles. This complicates the fitting of spools.
Those were written before I found more variations inside FED cameras. I should revise this and include the observations about the type 1g variants.
except for the center screw should be a mid 1938 camera.
i don't think it is a zorki, if it was one should be a 1b, because it has three screws on the back, and the body looks made of brass
The centre screw (close to the mount?) moved to the left early on. I think those made around 1939 would have this.
The earliest Zorki are just like FED. The bodies will interchange. The prewar FED have tougher body shells than the early Zorki.