Panzer Assault Badge in Silver (Panzerkampfabzeichen in Silber)

The Panzer Assault Badge in silver was instituted by Generaloberst Walther von Brauchitsch on December 20th 1939 for award to all ranks of tank personnel who served as a tank commander, driver, gunner or radio operator and had been involved in three different armored assaults on three different days. The institution order indicated the criteria for award of the badge was to be effective as of January 1st 1940.

Nicely detailed, die stamped, hollow backed, tombak award with a bronze washed finish is in the form of an embossed, vertically oval oak-leaf wreath with a Wehrmacht style eagle with down-swept wings, superimposed to the top center, encompassing the forward profile of a tank.
The reverse of the badge is a mirror image of the obverse. The reverse has a crimped, soldered hinge, a thin round vertical pin and a soldered catch all intact.
The badge has no visible manufacturer's

As in the attached photos. Found on the battlefield.