RSFSR. Ordinary letter sent from Moscow on February 10, 1922.

Cover of ordinary letter sent from Moscow to Moscow on February 10, 1922. It was received on February 12, 1922.
Cover is franked with control stamps of Russian Empire (at the sum of 250 rubles). Tax was 250 rubles (August 15, 1921 - February 01, 1922). Control stamp SS 6 (SC) meets very seldom on mailings (number 1..... instead of number 18 in date).