Russian Diving Knives

Two early examples - similar design to more recent examples except that the blades above are longer and the sheaths a lot heavier, these two date from the '40's and '50's.

Well used non-magnetic knife 

Non-magnetic (bronze blade) on the left and standard steel blade on the right (the handle on this example is shorter than most produced).

Rarer serrated steel blade - these are all numbered. 

More recent screw-in knife and right, compared to 50's model.

1970-80's divers knife complete with webbing belt and factory markings.