Shop arts cachet in purple, 1941-50, 1951-60

1027 3c New York City Unlisted Pent Arts Cachet in purple on #10 cover, (Pe...

1105 3c James Monroe unlisted Pent Arts Cachet in purple on #10 cover, (5th...

1001 3c Colorado Statehood Mellone #25 Pent Arts Cachet in purple on #10 pl...

991 3c Judicial Mellone #26, Pent Arts cachet in purple on #10 Air Mail cov...

991 3c Judicial Mellone #24, Pent Arts cachet in purple on #10 plain cover,...

991 3c Judicial Mellone #27 Pent Arts Cachet in purple on #10 plain cover, ...

992 3c Legislative, Mellone #29, Pent Arts cachet in purple on #10 plain co...

1015 3c Newspaper Boys Mellone #17 Pent Arts Cachet in purple on #10 cover ...

1015 3c Newspaper Boys Mellone #21 Pent Arts Cachet in purple on #10 cover ...

1022 3c American Bar Association Mellone #18, Pent Arts cachet in purple on...

1027 3c New York City Mellone #20 Pent Arts Cachet in purple on #10 Air Mai...

1027 3c New York City Mellone #20 Pent Arts Cachet in purple on #10 cover, ...

1067 3c Armed Forces Reserve Mellone #18 Pent Arts Cachet in purple on #10 ...

1087 3c Polio Mellone #16 Pent Arts Cachet in purple on #10 cover, (Unheral...

1087 3c Polio Mellone #18 Pent Arts Cachet in purple on #10 cover, (Iron Lu...

1087 3c Polio Mellone #20 Pent Arts Cachet in purple on #10 cover, (text), ...

992 3c Legislative, Mellone #25, Pent Arts cachet in purple of Senate Chamb...

1008 3c NATO Mellone #21, Pent Arts cachet in purple on #10 Special Deliver...

1003 3c Battle of Brooklyn Mellone #22, Pent Arts cachet in purple on #10 A...

1003 3c Battle of Brooklyn Mellone #24, Pent Arts cachet in purple on #10 A...

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