COLOMBIA, 1921, "Valor 30 Centavos" on 50c Pale Green, Hooked "L" in "Valor", Black Air Post Surcharge (Colomphil 22; Scott C20 var).
Three singles tied on piece by well-struck violet "Hidroavion" straightline handstamps, vertical folds between stamps and right stamp with crease in right margin from placement on piece, Very Fine, this piece contains three of the eight examples
recorded, one of which is the unique example on cover
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