5 Chervontsev Anthia mannerheimi

MasterVision is a private Finnish issuer producing numismatic pieces outside any sovereign mint framework — these carry no legal tender status and circulate exclusively among collectors. The denomination "5 Chervontsev" is a deliberate anachronism, borrowing from the Soviet chervonets, a gold-backed currency unit introduced by the Bolsheviks in 1922 to stabilize an economy in freefall after the civil war.

Anthia mannerheimi is a ground beetle named after Carl Gustaf Emil Mannerheim, who collected specimens across Central Asia during his 1906–1908 intelligence expedition for the Russian Imperial Army — the entomological finds were a cover, the cartography was the mission.