100 Roubles Medium Tank Object 430

Object 430 was the Soviet Army's primary competitor to what became the T-64 — a developmental medium tank project run by the Kharkov Morozov bureau through the late 1950s that was ultimately cancelled in 1961 when Khrushchev redirected armored vehicle funding. It never entered production, making its appearance on a commemorative issue somewhat unusual; Soviet and Russian numismatic series more typically honored hardware that actually reached the front line.