This Russian Soviet Federative Socialist Republic (RSFSR) stamp, issued in 1921, features the iconic design of a worker’s head, framed with laurel leaves and tools, symbolizing labor and education. Printed in deep blue, it carries the denomination of 10 rubles and is presented in an imperforate format, typical of early Soviet issues during the Civil War and hyperinflation period. These stamps are part of the definitive “Worker” series, which played a crucial role in the postal history of revolutionary Russia. An important piece for collectors of early Soviet philately, it reflects the political and economic challenges of the time.