A collectors mate wrote to me:
I did some checking on the web and only found your other threads trying to identifying this knife. So I emailed a friend, the curator of uniforms at the Hungarian Military Museum in Budapest, and here is his answer.
"Regarding your knife: I've seen this knife in more versions, the maker is unknown (maybe soviet? maybe hungarian?), but one thing is clear: this knife was used by hungarian paratroopers, both in the army and both in civilian (sport) circles. It was used in the 1970-90's maybe."
So it was used in military and civilian circles in Hungary which is not unusual. As to its specific purpose I can not say. It would appear to be more of a general purpose knife rather than one designed specifically to cut parachute cords."
Nice, unusual knife. The blade shape is extremely radical - similar
to Japanese made commercial blades.........
Hello Reibert, this is a soviet made knife, commercial use as far as I know, there are plenty of them here in Hungary as well.
By the way, your private e-mail inbox is not working,check it, before it is too late
Hello Reibert, thanks for a kind collector friend, there are some news regarding the producer of the presented knives.
ПК МООР (Московское общество охотников и рыболовов = Production Combinate of the Moscow Society of Hunters and Fishermen) in 1960-1970 years
These knives were produced as civilian knives, but Hungary ordered them for cord cutting.