Watch List notes:

TANNU TUVA: 20 kopejek, 1934, KM-7, struck at the Leningrad Mint, light porosity, EF. The 1934 series uses a Latin-based alphabet, which was devised in 1930 by a Tuvan Buddhist monk, Mongush Lopsang-Chinmit. He was later executed in Stalinist purges on 31 December 1941, and the Latin script was replaced by a Cyrillic-based alphabet.

Estimate: 75-100 USD