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A2004-002.2154 : Envelope, A Portland cover of May 30, 1859, showing use of an O.T. postmark in early statehood |
12/31/1859 |
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A2004-002.2155 : Envelope, A Portland cover dating from September 1859 |
12/31/1859 |
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A2004-002.2153 : Envelope, A cover postmarked PORTLAND/OT |
12/31/1853 |
