This is a USS Amphion AR-13 Officer's Metal Ashtray
-This is a metal ashtray.  It looks sand-cast.  I'm not sure of the material.  
-It measures approx.7" in diameter and approx. 1 1/4" high
-I believe this is from the 1950s era
-The letter A in AR-13 is a little rough
-See photos for details and condition.
Shipping is via USPS Ground Advantage with tracking in a padded envelope.