This stickpin is a ten year anniversary example for the B.D.M.A. (Bund Deutscher Militäranwärter)
This was an aviation related association.
The stickpin’s center is enameled in red, black, and white, Germany’s national colors Over that is a gold, Hohenzollern Eagle.
All of this is contained within a gilt-toned wreath topped with a Hohenzollern Crown.
Directly under the Hohenzollern Crown are the initials, “B.D.M.A.”
Surrounding the stickpin is a white and gold oakleaf wreath with the number “10”
It is oversized.
It is attached to an extra long knurled pin.
There is no manufacturing hallmarking on the reverse.