Macrinus, AE of Edessa, Mesopotamia. 4.36 g. 

[A K M] O C MAKRINOC, laureate, draped, cuirassed bust right, all
within laurel wreath.
O M EDECCA, veiled, draped and turreted bust of Tyche right, within
dotted border. 

BMC 51; SNG Cop. 207 var; Babelon 40 var; (border of dots on rev.)

Courtesy of Helios Auction 5, March 2011