Hopefully I got this correct. A nice looking Antiochus VII Euergetes coin. 138-129 BC Antioch Mint from 138 to 137 BC Obv.: Winged bust of Eros facing right. Rev.: Headdress of Isis, EOP below, monogram to right.
The SC catalogue number is SC 2067. The reverse of your example is sufficiently well-centered that all of the following are evident: All 3 vertical rows of legend. The date below. The inner left field symbol. The outer left field control mark. BTW: This portion of your posted reverse description is not correct: Congrats on the nice addition to your collection!
