« Previous Exploration Day View Full Size All Images Brown cachet for Exploration Day at 1992 WCSE Cachet Artcraft Format Other Tags 1990s ArtcraftCachets Cachet OneColor Series SloppyCancel Unaddressed WorldColumbianStampExpo Dates & Locations May 26, 1992 Chicago, IL, US Related Covers Thematic Day Stamp Collecting Day Olympic Sports Day Finger Coral in Hawaii WWII Cooperation in Space
