1955 Pennsylvania Academy of the Fine Arts

Stamp 870
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brown

1955 The 100th Anniversary of the Land Grant Colleges

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green

1955 The 50th Anniversary of Rotary International

Stamp 872
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blue

1955 Armed Forces Reserve

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purple

1955 New Hampshire - The Old Man of the Mountains

Stamp 874
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green

1955 The 100th Anniversary of Soo Locks

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light blue

1955 Atoms for Peace

Stamp 876
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blue

1955 The 200th Anniversary of Fort Ticonderoga

Stamp 877
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brown

1955 The 100th Anniversary of Andrew Mellon

Stamp 878
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carmine red