Seal/Emblem Question

I have a Mauser byf '41 P.08 with a 3" barrel, ser # 4133. All parts including mag are same ser #. This pistol was obtained 31 years ago during a military tour in Italy. I was given the pistol from an Italian officer who told me the story "that it belonged to a SS Lt. Colonel, who had escaped to Austria, after WWII, and then down into Italy. He remained in Italy a number of years working with the Facist movement". This pistol has an interesting emblem/seal mark that I have never seen on any other weapon. It is a gold, approx 3/8" in diameter, 1/16" in height circular. The gold seal has a swastika with a reath around the outer edge. I have been to many gun shows and asked about this with little results in trying to detemine the significance/importance of the emblem.