United States

1542a, Superb NH Dull Black Color Omitted ERROR With Normal - Stuart Katz

$329.00

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2189a, 52¢ Humphrey Shiny Gum Sheet of 100 Stamps CV $395.00 - Stuart Katz

$250.00

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2283, MNH 25¢ Imperforate Between Booklet Pane ERROR PW - Stuart Katz

$470.00

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631, Mint Superb LH - NO GUM BREAKERS Plate Block of Four Stamps - Stuart Katz

$300.00

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Scott RW74A Ring-Necked Duck Federal Duck Stamp Self Adhesive Pane - Stuart Katz

$29.95

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RW78, 2011 White-Fronted Geese Federal $15 Duck Stamp Mint NH - Stuart Katz

$44.95

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1420a, Mint VF NH 6¢ Pilgrim Orange & Yellow Omitted ERROR * Stuart Katz

$399.50

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RW12, Mint VF-XF NH Top Plate Block of Six Duck Stamps Cat $600.00 - Stuart Katz

$475.00

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Peanuts - Snoopy Full Sheet of Twenty 34 Cent Stamps Scott 3507 - Stuart Katz

$17.95

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TDB36, 1988 Jack London Test Booklet Complete Unexploded Cat $410.00 Stuart Katz

$250.00

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Endangered Species Collectible Sheet Fifteen 32 Cent Stamps Scott 3105 By USPS

$8.50

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1996 Atlanta Summer Olympics Games Sheet of Twenty 32 Cent Stamps Scott 3068

$11.95

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Sylvester and Tweety Full Pane of Ten 32 Cent Stamps By USPS Scott 3204

$5.95

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2015c, All Colors Omitted ERROR - Mint VF NH With Normal - Stuart Katz

$117.50

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390, Mint VF NH Line Pair, Coil Pair and Single Stamp Cat $104.50 - Stuart Katz

$75.00

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1920's Postage Production Test Block of 24 Stamps - Stuart Katz

$475.00

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1420a, Mint VF NH Orange & Yellow Colors Omitted MAJOR RARITY - Stuart Katz

$399.50

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3477, Misperfed Error Strip of Six With PL#4444 - Mint NH - Stuart Katz

$37.60

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1615cf, Mint VF NH Piano Imperforate Strip With Gap Error - Stuart Katz

$140.06

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4141a, "Florida Panther" Die Cutting Omitted Major ERROR - Stuart Katz

$235.00

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2550a, 29¢ Color Porter Imperforate Between ERROR - Mint NH - Stuart Katz

$329.00

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371 Mint Plate Block of Six - XF NH Cat $350.00 - Stuart Katz

$225.00

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Chinese New Year of the Boar Sheet of Twenty 37 Cent Postage Stamps Scott 2876

$11.95

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2550a, 29¢ IMPERFORATE BETWEEN ERROR - COLE PORTER - Stuart Katz

$329.00

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