Obverse:

CAROLVS D G MAG BRIT FRAN ET HI REX. Bust in scalloped lace collar with value mark XII behind.

Reverse:

CHRISTO AVSPICE REGNO. Crowned oval shield with lion's skin garniture.

Small metal flaw on crown (corresponding area on reverse) otherwise very fine and toned. 

From the S. Maguire Collection [bt M. Cooke Jun 2015]