Soviet Air Force Officer's Dagger

This item really lies outside of my collection, but recently I had a chance to obtain one for a really good price, so I decided why not:) Not much of a description here - I'm sure others know more about this items then I do... Air Force dagger is identical to those issued to Army and Navy officers, the only exception is picture on the scabbard - on one side it has Mig-15s or Mig-17s overflying Kremlin, on the other side is VVS's "winged propeller" insignia placed in the light of the rising sun. Pictures below are self-explanatory...