This is an 1812 Capped Bust Half in PCGS XF40.  It is the die marriage O-104.  The tone is largely dove grey, but has dappled aqua blue, amber, and a pinch of olive green, especially along the edges.  And, when rotating under the light a silky cartwheel luster springs to life.  Not bad for an XF40 eh?
 
This coin is approved by CAC.
 
PCGS Cert. #15377587