commemorative medal RADM GP DICKEY

[CED13000]

hi
thank you to identify this medal
Is it rare?
No punch
It measures 7.7 millimeters in diameter
cordially
ced

[crowback]

Looks like a challenge coin, not a medal.

[CED13000]

ok
thank's
it is rare?
i don't find this coin on the net
cordially
ced