>1951

1951 Final Reunion of the United Confederate Veterans

Stamp 807
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dark brown

1951 The 100th Anniversary of the First Nevada Settlement

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green

1951 The 250th Anniversary of The Landing of Cadillac

Stamp 809
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light blue

1951 The 75th Anniversary of Colorado Statehood

Stamp 810
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violet

1951 The 75th Anniversary of American Chemical Society

Stamp 811
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brown

1951 The 175th Anniversary of the Battle of Brooklyn

Stamp 812
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dark violet