FED 1, Dzerzhinsky engraved - Collection of 4x Soviet Rangefinder camera

A lot of four DEFECTIVE 1950s Russian FED-1 cameras with rare Dzerzhinsky engraving:
“ЗАВОД ИМ. ФЭ ДЗЕРЖИНСКОГО”.

- FED Body number 282856, lens F3,5-18 number 2180 on rear
- FED body number 218899, lens F3,5-18 number 592 on rear
- FED body number 399603, lens F3,5-16 number 750 on rear
- FED body number 330047, lens F3,5-16 number 9042 on rear
- FED user manual, 1954, Russian language
- 4x FED leather cases

The cameras have been inspected and checked for functionality.
The shutters work at all speeds, but the shutter curtains need replacement because of wrinkles or pinholes.
The rangefinders are reasonably accurate; one of them has vertical image misalignment.
The optics are in good condition, apertures work fine, and the lenses turn smoothly.
One of the lenses has a dull spot of approximately 2x2 mm (see picture with arrow).

Including 4 original leather cases and 1 original instruction manual.