Overprints on this type: (See as list) airmail 6/8/1931 ovpt=AIR MAIL//biplane oc=blk official 4/6/1925 issue=1925 official In collections: used (Stan Shebs) |
External links: Colnect 441817..finitive_Issue Record of changes |
Overprints on this type: (See as list) airmail 6/8/1931 ovpt=AIR MAIL//biplane oc=blk official 4/6/1925 issue=1925 official In collections: used (Stan Shebs) |
External links: Colnect 441817..finitive_Issue Record of changes |
