If you turn over the M-3 Shoulder holster you’ll see the name BLIZZARD inked in on the back....you can google they guy. A small statured P51D pilot who flew out of England in 1944-45 IIRC....he crash landed at least once. What makes me believe it is legitimate is how the adjustable part of the holster was set. For a very small stature torsoed pilot.....