United States

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1568a, MNH 10¢ Dramatic Color Shift Freak Error Block of Six - Stuart Katz
SK-29341
$46.95
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C22, Mint 50¢ VF NH Bottom Plate Block of Ten Stamps CV $125 - Stuart Katz
SK-29971
$85.00
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915b, 5¢ MNH Partial Reverse Printing of Flag Colors Name Block - Stuart Katz
SK-29969
$277.30
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1070, Mint Sheet Half Gummed With Postal Rejection Markings Error - Stuart Katz
SK-29970
$47.00
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1053, Mint VF NH $5 Hamilton Plate Block ** Stuart Katz
SK-30143
$119.95
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2877b, Mint XF NH Scarce Double Impression Error - Stuart Katz
SK-25027
$112.80
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Four Flags - Freedom Flag Full Pane of 20 - Stamps
SK-4648b
$23.45
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Star-Spangled Banner Booklet of 20 - Stamps (Fireworks) 4855a
SK-4855aPane20
$27.21
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528, Mint NH Plate Block of Six Stamps CV $190.00 - Stuart Katz
SK-29883
$75.00
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3068u, MNH 32¢ Atlanta Olympics Complete Imperforate Pane ERROR - Stuart Katz
SK-11529
$705.00
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U.S. Waving Flag Booklet of 20 - Postage Stamps 2017 Edition Scott 5055
5055
$20.95
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Wedding Cake One PACK of TEN 61 Cent Postage Stamps Scott 4398
SK-30120
$29.88
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647, Mint NH 2¢ Plate Block of Four Stamps CV $180.00 - Stuart Katz
SK-29927
$120.00
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Holiday Poinsettia ATM Booklet Pane of 18 - Postage Stamps Scott 4821a
4821abooklet/18
$35.67
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Love Flourishes Wedding Sheet of 20 Current Rate Postage Stamps Scott 5255
SK-5255
$43.13
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1939 Var, MNH 20¢ Gutter Snipe Strip of Ten Freaky Error Stamps - Stuart Katz
SK-29871
$46.95
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1338Fp, MNH 8¢ Green Slate Color Omitted Major Error With PFC Cert - Stuart Katz
SK-28960
$234.06
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2251a, Mint 22¢ VF NH All Litho Colors Omitted Error With PFC Cert - Stuart Katz
SK-28418
$1,316.00
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2052, MNH 20¢ Misperforated Freak Error Plate Block of 9 Stamps - Stuart Katz
SK-29861
$117.50
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1894, MNH 20¢ Misperforated Freak Error Part Perfin Block of 20 - Stuart Katz
SK-29862
$177.66
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1876-79, MNH 18¢ Misperforated Freak Error PL# Block of 12 Stamps - Stuart Katz
SK-29856
$56.40
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Alaska Totem Pole Full Sheet of Fifty 8 Cent Airmail Postage Stamps Scott C70
c70
$22.95
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2618, Mint NH 29¢ Great Misperf Error Block That Shows Gutter - Stuart Katz
SK-28674
$117.50
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2092, Mint NH 20¢ Wetlands Ducks - Margin Copy Error ** Stuart Katz
SK-28823
$37.55
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642, Mint VF NH 10¢ Complete Sheet of 100 Stamps - Stuart Katz
SK-29773
$575.00
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982, MNH 3¢ Misperf Shift Freak Error Block/4 Washington And Lee - Stuart Katz
SK-29659
$117.50
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1478, MNH 8¢ Green Color Shift Freak Error With Normal - Stuart Katz
SK-29646
$46.95
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2618, Mint NH 29¢ Great Misperf Error Plate Block That Shows Gutter Stuart Katz
SK-28675
$164.50
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899b, MNH 1¢ Two Imperforate Between Pairs in Full Sheet Error -- Stuart Katz
SK-27726
$89.30
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548, Mint VF NH WHOLESALE Group of TEN Stamps - Stuart Katz
SK-29630
$99.00
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1061, MNH 3¢ Misperf Shift Freak Error Block of 4 - Stuart Katz
SK-29661
$79.90
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1009, MNH 3¢ Misperf Shift Freak Error Block of 4 - Stuart Katz
SK-29660
$89.30
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559, MNH 7¢ Very Scarce Misperfed Block of Four Stamps WoW - Stuart Katz
SK-29832
$277.30
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615, Mint LH/NH 2¢ Misperfed Error Horizontal Pair - SCARCE! - Stuart Katz
SK-29823
$108.10
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1731, Mint NH 13¢ Misperfed Shifted Down Freak Error -- Stuart Katz
SK-29489
$18.75
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1122, MNH 4¢ Misperf Shift Freak Error Conservation Stamp -- Stuart Katz
SK-29656
$28.15
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C86, Mint VF NH 11¢ Violet Color Shifted Down Error With Normal - Stuart Katz
SK-29827
$37.55
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647, Mint VF NH 2¢ Complete Sheet of 100 Stamps CV $950 - Stuart Katz
SK-29780
$695.00
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644, Mint VF NH 2¢ Complete Sheet of 50 Stamps CV $385 - Stuart Katz
SK-29777
$295.00
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1861, MNH 20¢ Misperfed Strip 10 Stamps Big And Small Stamp Errors - Stuart Katz
SK-29314
$28.15
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1282, MNH 4¢ Lincoln Misperfed Freak Error Block of 4 Stamps - Stuart Katz
SK-29476
$56.35
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954, MNH 3¢ Misperf Shift Freak Error Block of 4 California Stamps - Stuart Katz
SK-29662
$117.50
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2031, MNH Misperfed Error Makes For Change of Design With Normal -- Stuart Katz
SK-28387
$23.50
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1856c, Mint NH Horizontally Imperforate Between ERROR Sheet - SPECIAL OFFERING!
SK-29020
$56.35
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Title IX Sheet of 20 Current Rate Postage Stamps Scott 5671a
5671
$19.63
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915b, 5¢ RARE Used Reverse Flag Colors Block Cat $600.00 - Stuart Katz
SK-29546
$235.00
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Par Avion, MNH Two Way Perforation Freak Error Pane UNUSUAL! - Stuart Katz
SK-29473
$187.06
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1541a, MNH 10¢ Reverse Offset Printed Under Gum Error Block - Stuart Katz
SK-28486
$70.50
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