# Thumbnail Catalog Number Description Denomination Color Variety Date Issued Gum Type Actions
5371 4068 Wonders of America: Land of Superlatives: Mammoth Cave, longest cave 39c Multicolored 2006 US Commemorative Issue 5/27/2006 Self Adhesive
5372 4069 Wonders of America: Land of Superlatives: Blue whale, loudest animal 39c Multicolored 2006 US Commemorative Issue 5/27/2006 Self Adhesive
5373 4070 Wonders of America: Land of Superlatives: Death Valley, hottest spot 39c Multicolored 2006 US Commemorative Issue 5/27/2006 Self Adhesive
5374 4071 Wonders of America: Land of Superlatives: Cornish-Windsor Bridge, longest c... more
Wonders of America: Land of Superlatives: Cornish-Windsor Bridge, longest covered bridge
39c Multicolored 2006 US Commemorative Issue 5/27/2006 Self Adhesive
5375 4072 Wonders of America: Land of Superlatives: Quaking aspen, largest plant 39c Multicolored 2006 US Commemorative Issue 5/27/2006 Self Adhesive
5376 4072a Wonders of America: Land of Superlatives - Full pane of 40 40 @ 39c Multicolored 2006 US Commemorative Issue 5/27/2006 Self Adhesive
5377 4073 Samuel de Champlain's 1609 Voyage of Survey - 400th Anniversary 39c Multicolored 2006 US Commemorative Issue 5/28/2006 Self Adhesive
5378 4074 Samuel de Champlain's 1609 Voyage of Survey - 400th Anniversary 39c(US)  and  51c(Canada) Multicolored 2006 US Commemorative Issue - Souvenir sheet 5/28/2006 Water Activated
5379 4075 Washington 2006 World Philatelic Exhibition Reprints Souvenir Sheet $8.00 Multicolored 2006 US Commemorative Issue Souvenir Sheet 5/29/2006 Water Activated
5380 4075a Washington 2006 World Philatelic Exhibition Reprints: Lincoln Memorial $1.00 Multicolored 2006 US Commemorative Issue Souvenir Sheet 5/29/2006 Water Activated