Lot 61632 – 1921 (Dec 20) Cover to Barranquilla with 1921 15c, the earliest usage recorded

1921 (Dec 20) Cover to Barranquilla, franked by 1921 15c blue, cancelled by SCADTA Cartagena oval hs in violet, and National Post 1c (3) tied by Barranquilla receiving ds, repeated on back in a different colour, minor traces of toning along few perforations; the earliest recorded usage of the 15c; signed Champion.