desc_issuer: Colombia desc_issue: 1948 air desc_denom: 20c Used by 2 overprinted stamps: Colombia airmail 7/12/1950 20c vio issue=Avianca overprint d=Street in Bogota on=issue=1948 air-20c unwmk perf=12 Colombia airmail 7/18/1950 20c vio issue=Lansa overprint d=Street in Bogota on=issue=1948 air-20c unwmk perf=12 Not used by any images. Matches 1 type: Colombia airmail 7/21/1948 20c vio issue=1948 air d=Street in Bogota unwmk perf=12 |