Los 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
