desc_issuer: Colombia desc_issue: 1948 air desc_denom: 5c Used by 2 overprinted stamps: Colombia airmail 7/12/1950 5c yel issue=Avianca overprint d=Pre-Columbian Monument on=issue=1948 air-5c unwmk perf=12 Colombia airmail 7/18/1950 5c yel issue=Lansa overprint d=Pre-Columbian Monument on=issue=1948 air-5c unwmk perf=12 Not used by any images. Matches 1 type: Colombia airmail 7/21/1948 5c yel issue=1948 air d=Pre-Columbian Monument unwmk perf=12 |