I claim the ornamental design for a military service headstone medallion, as shown and described.
A medallion or plaque for attachment to a grave marker, and which is indicative of the military service branch. The medallion is mounted flush with the surface of the grave marker.
FIG. 1 is a top view of a military service headstone medallion showing my new design; and,
FIG. 2 is a side view thereof; the undisclosed rear does not form part of the claimed design. The broken lines in FIG. 2 are for illustrative purposes only and do not form part of the claimed design.
The insignia on the medallion forming part of the claimed design is a registered trademark of the U.S. Air Force, 600 Chenault Circle, Maxwell AFB AL 36066.