COLOMBIA, 1921, 30c Pale Green, Air Post (C29).
Lightly struck Barranquilla SCADTA handstamp, also with large part of "Servicio Postal Aereo de Colombia, PANAMA"
boxed handstamp which was used upon arrival in Panama, stamp with inconsequential corner crease, Fine strike, only two stamps of this issue
are recorded with this handstamp, with 2014 Moorhouse certificate
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