« Previous Next » GAMM Columbian Exposition View Full Size All Images GAMM Columbian Exposition Cachet Gerry Adlman GAMM Cachets Format Other Tags ChristopherColumbus CropImage GammCachets OfficialFirstDay Series Dates & Locations May 22, 1992 Chicago, IL, US Related Covers GAMM Columbian Exposition GAMM Columbian Exposition GAMM Columbian Exposition GAMM Columbian Exposition First Voyage of Columbus Italian block First Voyage of Columbus
