1941 year Soviet RKKA Gasmask BS MT-4 with gas mask SchM-1

Soviet RKKA Gasmask BS MT-4 with gas mask SchM-1. Bag can be bought separately. The main gasmask in Red Army before 1943 year ( MO type). Rubber in good condition, the steel parts on the mask have some slight oxidation, but they can be easy cleaned. Rare to find a good soviet gasmask nowadays. The filter marked April 1941 year. Good complete condition!