Bishop face - Letter M coin ...any idea ?

[aidab]

Hi again,

This one weights 0.5 gr and it's diammeter is 14-16 mm.
It presents what it seems a bishop face in one side and the circlered letter M in the other ....any idea ?

[bernima]

Hallo,

Bistum Augsburg, Heinrich der IV. v. Lichtenau 1505 - 1517.
Pfennig ohne Jahr.

mfg. bernima