Lot no. 6806

1923, Hammer and Sickle overprint on Imperial arms type 300000r. on 20k. blue overprint as horizontal pair with additional franking tied by blue georgian script cds. "SURAMI 14 9 23" to reverse of registered cover to Tiflis with arrival mark, vertical fold affecting the additional franking, otherwise fine, a very rare cover and to our knowledge the only cover bearing the blue overprint