RUSSIA. Elizabeth/Cessation of Land Border Disputes Bronze Medal, "1754" (ca. early 19th Century). PCGS SPECIMEN-63.

highest grade as you can see on a screenshot from PCGS and only 2 are graded. 

Diakov-99.2. By T. Ivanov. Diameter: 64mm. Obverse: Crowned, garlanded, and mantled bust right; Reverse: Armored and draped female (Russia) standing left, casting away discord; pastoral scene with monument in background.