Medal. Bronze. 65.3 mm.
By T. Ivanov. Laying of the Cornerstone of St. Isaac Cathedral in St. Petersburg, 1768. Diakov 137.1, Tiregal 105. Crowned and mantled Catherine II bust right, signed TИMOΘEИ ÏBAHOBЪ below / View of St. Isaac Cathedral. Butterscotch brown with a soft pearlescent undertone and good lustre. About uncirculated