Wings: Sword & wrench

[Jeffrey Meffert]

I recently acquired an M40 cadet pullover with wings in place. The odd thing is that it isn't crossed swords (pilot) or hammer and wrench (engineer) but a sword crossed with a wrench. I can't find any pictures of this in any of my books although my Russian isn't could enough to pick it out of the text if this variation is discussed there.
Any ideas?

[DougD]

Unofficial sleeve badge (and I'd say very rare!) for Flight Technician. Photo is from 'Soviet Arm Badges 1920-1991'.