This discussion is way beyond me, but if its worth anything, Angolia's 1971 book states, page 63 (somewhat inconclusively/ imprecisely perhaps) regarding the new M36;
"The dagger was basically the same as its predecessor, with the exception of the addition of a double chain suspension band. Fittings of the dagger were initially nickle-silver and later, nickle plated, zinc die casting. The externally mounted scabbard fittings were first nickle-silver which were later changed to nickel plated steel. The scabbard body was finished in a blue oxide or black paint. The centre scabbard band was designed with a series of of linked swastikas"
