1/2 Jefimok Rouble - Alexey Mikhailovich Countermarked over 'Frankfurt Thaler 1621'

The jefimok program of 1655 was a pragmatic response to Russia's chronic silver shortage during the Thirteen Years' War with Poland-Lithuania — Moscow lacked the ore supply to mint sufficient coinage from scratch, so Tsar Alexey Mikhailovich's treasury instead countermarked foreign thalers already circulating in Russian trade. The half-jefimok was cut directly from a full thaler before countermarking, which is precisely why the host coin's original details matter: a Frankfurt thaler of 1621 places this flan's origin in one of the Holy Roman Empire's most active minting cities during the Kipper- und Wipperzeit currency crisis, itself a period of aggressively debased coinage.

The program was abandoned the same year it launched, making the entire jefimok series short-lived. Spassky's documentation of this type remains the authoritative reference for attribution.