RUSSIAN LIVONIA & ESTONIA: Elizabeth, 1741-1761, AR 4 kopecks, 1757/6, KM-2, Bitkin-476var (1st ed.)., bold overdate, somewhat crude, reverse spot, slightly bent, overdate not mentioned by Bitkin, one-year type, F-VF, R. We were only able to find one other sale of the overdate variety online, a 2017 sale by Stack's.
Estimate: 120-170 USD