Colombia Air Post Balance.
Desirable balance of a specialized collection from 1919 to the 1960s, on exhibition pages and stockpages, starts off with 1919 stamp (C1) correctly used on a flight cover (small faults as usual), labels that formed the 1920 CCNA First Issue, and one genuine used stamp (No. C4, small faults, R.P.S. certificate), CCNA Second, Third and Fourth Issues includes the tete-beche pair (No. C11Cj) in a block of fourteen, SCADTA issues includes a few of the 1921-23 Surcharges, errors and varieties of the 1921-28 issues, plus several sets of the SCADTA overprints for various countries, 1929 and later issues contain error and varieties, particularly imperforate or part-perforate stamps, and some flight covers sprinkled throughout, a few small fault, majority Fine-Very Fine
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