SB Zusatz for the FF33 Field Phone Soviet Slide a 12 gram CO2

Slide a 12 gram CO2 cartridge into the tube inside the main body with the puncture end facing the top of the round towards the threaded plug which contains the firing pin

The apron has some pulls in the material

The knob pulls out so the pin can be secured better

matching example

They even produced time delay fuse mechanism

SB Zusatz for the FF33 Field Phone Soviet Slide a 12 gram CO2Neat little field phone accessory which effectively turns your field phone into more of a desk phone. This cradle clips to the top of your field phone case and basically makes it work more like a regular phone; pick it up to answer, set the receiver down to hang up. This one is in rather good condition. The only flaw of note is that one of the wires is missing the brass tube that should be crimped to the end of the wire to make installing it easier.