Lot 1020
Bogota Issue: December 1921, "VALOR 20 Ctvs." surcharge in violet on 50 c. pale green as marginal copy with 10c. yellow and Colombia 10c. black as additional franking, tied by round cachet "SERVICIO POSTAL AEREO BOGOTA SCADTA" to large piece, few shortend perfs and additional franking with some foxing, otherwise fine, a very rare and attractive combination
