« Previous Next » GAMM Columbian Exposition View Full Size All Images GAMM Columbian Exposition Cachet Gerry Adlman GAMM Cachets Format Other Tags ChristopherColumbus 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 GAMM Columbian Exposition First Voyage of Columbus
