United States

1507, MNH 8¢ Misperforated Error Top PL# Block of 14 - Stuart Katz

Custom Sku: SK-28943

$70.50

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484, Mint XF LH 3¢ Plate Block of Six - A BEAUTY! -**- Stuart Katz

Custom Sku: SK-28906

$75.00

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1485a, MNH 8¢ Imperforate Between Error PL# Block of 6 Pairs - Stuart Katz

Custom Sku: SK-28945

$705.00

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1560, MNH 10¢ Misperforated Error Plate Block of 10 Stamps - Stuart Katz

Custom Sku: SK-28964

$141.00

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1541a, Mint NH 10¢ Large Misperfed Error Block - Minerals -- Stuart Katz

Custom Sku: SK-29007

$117.50

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1394, MNH 8¢ FULL Reverse Printing Under Gum Freak EFO Error * Stuart Katz

Custom Sku: SK-29128

$46.95

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1338, MNH Strip FULL Reverse Printing Under Gum Freak EFO Error * Stuart Katz

Custom Sku: SK-29125

$93.95

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1364, MNH 6¢ Partial Reverse Printing Under Gum Freak EFO Error * Stuart Katz

Custom Sku: SK-29126

$46.95

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1381, MNH 6¢ Partial Reverse Printing Under Gum Freak EFO Error * Stuart Katz

Custom Sku: SK-29119

$70.50

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1474, MNH 8¢ Terrific Black Color Shift Error With Normal - WoW - Stuart Katz

Custom Sku: SK-28939

$140.06

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1126, MNH 8¢ FULL Reverse Printing Under Gum Freak EFO Error * Stuart Katz

Custom Sku: SK-29123

$70.50

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1463, MNH 8¢ Partial Reverse Printing Under Gum Freak EFO Error * Stuart Katz

Custom Sku: SK-29117

$70.50

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Charlie Brown Booklet Pane of 20 First Class Stamps Scott 5030a - Stuart Katz

Custom Sku: SK-5030

$46.89

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Bethesda Fountain $25.50 Express Mail Sheet of 4 Postage Stamps Scott 5348

Custom Sku: 5348sht

$495.00

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Christmas Holiday Virgin & Child Booklet of 20 First Class Stamps Scott 4815b

Custom Sku: 4815b

$32.79

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4019, 2006 $14.40 X-15 Plane Priority Mail Pane of 20 Stamps - Stuart Katz

Custom Sku: SK-08828

$450.00

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1548, Mint NH 10¢ Terrific Reverse Printing Under Gum Error - Stuart Katz

Custom Sku: SK-29073

$89.30

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1525, MNH 10¢ Misperf Shift Freaky Error Sheet of 50 Stamps - Stuart Katz

Custom Sku: SK-29246

$653.30

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1569-70a, Mint NH 10¢ Fold Over Freaky Error Space Block - Stuart Katz

Custom Sku: SK-29248

$183.30

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1338, MNH 8¢ Over Inking Freaky Error Sheet of 100 Stamps - Stuart Katz

Custom Sku: SK-29239

$281.06

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1564, MNH 10¢ Misperf Shift Freaky Error Sheet of 40 Stamps - Stuart Katz

Custom Sku: SK-29250

$328.06

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1126, Used 8¢ Misperf Shift Freaky Error Sheet of 72 Stamps - Stuart Katz

Custom Sku: SK-29241

$371.30

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1444, MNH 8¢ Misperfed And Tape Splice Freaky Error Sheet of 50 - Stuart Katz

Custom Sku: SK-29235

$705.00

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1118, MNH 8¢ Misperf Shift Freaky Error Sheet of 72 Stamps - Stuart Katz

Custom Sku: SK-29240

$559.30

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1690, Mint NH 13¢ Terrific Partial Reverse Printing Under Gum Error Stuart Katz

Custom Sku: SK-29076

$70.50

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1556, Mint NH 10¢ Terrific Partial Reverse Printing Under Gum Error Stuart Katz

Custom Sku: SK-29074

$47.00

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1705, Mint NH 13¢ Terrific Reverse Printing Under Gum Error - Stuart Katz

Custom Sku: SK-29077

$70.50

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2540b, Mint NH $2.90 Black Color Omitted Error With Normal - Stuart Katz

Custom Sku: SK-29039

$371.30

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Pacific 97 Testing Sheet of 40 Stamps With Fold Over Error - Stuart Katz

Custom Sku: SK-29025

$234.95

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1280 Var, Mint NH 2¢ Fold Over Error Created FULL GUTTER PAIR - Stuart Katz

Custom Sku: SK-29023

$705.00

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1551, Mint NH 13¢ Misperfed Freaky Sheet of 50 Error Stamps - Stuart Katz

Custom Sku: SK-29033

$935.30

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1033, Mint NH 2¢ Remarkable Freak Block of Stamps UNIQUE ERROR - Stuart Katz

Custom Sku: SK-29030

$1,875.30

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1856 Var, MNH 14¢ Misperfed Strip of Ten Stamps With Gutter Between Stuart Katz

Custom Sku: SK-29029

$164.50

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2723A, Scarce 11.2 X 11.5 Perforations Complete Sheet of 40 - Stuart Katz

Custom Sku: SK-29021

$225.60

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1578a, Mint NH 10¢ Sensational Color Shift Error Plate Block - Stuart Katz

Custom Sku: SK-29002

$117.50

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2092, Mint NH 20¢ Wetlands Ducks - Margin Copy Error - Stuart Katz

Custom Sku: SK-28824

$37.55

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219-29P4, XF Set of Card Proofs Includes 219D - Very Fresh Colors -- Stuart Katz

Custom Sku: SK-28833

$550.00

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637, Mint LH/NH 5¢ - Large Misperforation Error Block of Four * Stuart Katz

Custom Sku: SK-28827

$56.40

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677, Mint NH VF 8¢ Nebr Plate Block of Four CV $550.00 * Stuart Katz

Custom Sku: SK-28832

$399.00

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663, Mint NH VF 5¢ Kans Plate Block of Four CV $650.00 * Stuart Katz

Custom Sku: SK-28831

$399.00

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1505, Mint NH 10¢ Unbelievable Black Color Shift Error Plate Block - Stuart Katz

Custom Sku: SK-29000

$282.00

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1578a, Mint NH 10¢ Sensational Color Shift Error Plate Block -- Stuart Katz

Custom Sku: SK-29003

$141.00

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290, Used 10¢ XF/Superb Gem Quality Stamp - Stuart Katz

Custom Sku: SK-28815

$125.00

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1555a, Mint NH 10¢ Brown Color Omitted Error - RARE Plate Block - Stuart Katz

Custom Sku: SK-28998

$1,316.00

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1578a, Mint NH 10¢ Massive Color Shift Error Pair - Fantastic! - Stuart Katz

Custom Sku: SK-28991

$47.00

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1578a, Mint NH 10¢ Massive Color Shift Error Pair - Very Cool! - Stuart Katz

Custom Sku: SK-28990

$47.00

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1576, Mint OG 10¢ Misperforated Error Plate Block of 25 Stamps - Stuart Katz

Custom Sku: SK-29013

$70.50

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267, Mint HR 2¢ - Large Misperforation Error Block of Four * Stuart Katz

Custom Sku: SK-28828

$117.50

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1547, Mint NH 10¢ Nice Color Shift Error In Sheet of 50 Stamps - Stuart Katz

Custom Sku: SK-29017

$141.00

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2074, 20¢ Hard to Find Misperfed Error Stamp Mint NH - Stuart Katz

Custom Sku: SK-27420

$28.15

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C84-C100, 1972-1980 Airmail Commemorative Set of 18 MNH Stamps - Stuart Katz

Custom Sku: 1972-80

$19.95

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910a, Mint NH Double Impression of Czechoslovakia Error - RARE - Stuart Katz

Custom Sku: SK-28792

$465.30

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2518a, MNH VF Imperforate PL# 1111 Error Strip of 10 Stamps CV $275 Stuart Katz

Custom Sku: SK-28787

$211.50

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50 X SETS - Scott 909-21, 1943-44 Overrun Countries Issues Set of 13 Mint NH

Custom Sku: SK-28835

$75.00

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1726b-c, MNH 13¢ Strip of 5 Containing Both Color Omitted Errors - Stuart Katz

Custom Sku: SK-28649

$611.00

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2022a, Mint NH 20¢ Misperforated Error Block of Four - Red at Top - Stuart Katz

Custom Sku: SK-28512

$37.60

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2440 Var, Miscut 25¢ Love Sheet Creates Five Color Omitted Stamps - Stuart Katz

Custom Sku: SK-28671

$1,875.30

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2114, MNH 22¢ Miscut Error Pane Makes for 10 Full Gutter Pairs - Stuart Katz

Custom Sku: SK-28647

$2,350.00

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1355a, Mint NH Zip Block With Ochre Color Omitted RARE Error - Stuart Katz

Custom Sku: SK-28637

$1,175.00

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2369, MNH 22¢ Nice Color Shift Error With Normal stamp Too! - Stuart Katz

Custom Sku: SK-28716

$18.79

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368, Mint Superb NH 2¢ Imperforate Block of Four - Stuart Katz

Custom Sku: SK-28743

$89.00

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2500a, MNH 25¢ Diagonal Misperf Error Complete Sheet - AMAZING! - Stuart Katz

Custom Sku: SK-28677

$893.00

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1742a, MNH 15¢ Two Way Misperf Shift Errors In Complete Booklet - Stuart Katz

Custom Sku: SK-28640

$234.06

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486, Mint XF NH Coil Line Strip of Four Stamps - GEM -- Stuart Katz

Custom Sku: SK-28764

$55.00

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219-29P4, XF Set of Card Proofs Includes 219D - Very Fresh Colors - Stuart Katz

Custom Sku: SK-28636

$595.00

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1483a Var, Black Litho Color Almost Completely Omitted With PFC - Stuart Katz

Custom Sku: SK-28767

$141.00

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1578a, Mint NH 10¢ Color Shift ERROR Pair Banking Commerce - Stuart Katz

Custom Sku: SK-27381

$23.50

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C87, MNH 18¢ TWO Different Color Shift ERRORS - Airmail Stamps - Stuart Katz

Custom Sku: SK-28706

$61.10

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1716, MNH 13¢ Perf Shift Error Sheet of 40 Stamps - Scarce! - Stuart Katz

Custom Sku: SK-28585

$164.50

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1709a, MNH 13¢ Perforation Shift Error Sheet of 40 Stamps - Stuart Katz

Custom Sku: SK-28583

$470.00

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1690, MNH 13¢ Brown Color Shift Error Sheet of 50 Stamps - Scarce! - Stuart Katz

Custom Sku: SK-28586

$940.00

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2110, Misperfed Error 22¢ Stamp Jerome Kern Mint NH - Stuart Katz

Custom Sku: SK-27404

$18.75

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William H Johnson American Treasures Sheet 20 Current Rate Stamps Scott 4653

Custom Sku: SK-4653

$28.09

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Love Issue Full Sheet of 50 - 20 Cent Postage Stamps Scott 2072

Custom Sku: 2072

$25.95

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Baltimore Checkerspot Butterfly Sheet of Twenty 65 Cent Stamps Scott 4603

Custom Sku: 4603

$59.95

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Peace Garden Sheet of Fifty 20 Cent Postage Stamps Scott 2014

Custom Sku: 2014

$17.95

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1622a, MNH 13¢ Imperforate Between PL# Block of 10 Stamps -- Stuart Katz

Custom Sku: SK-27888

$131.60

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Hawaii Statehood Full Sheet of Fifty 7 Cent Airmail Postage Stamps Scott C55

Custom Sku: C55

$22.95

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640, Mint OG 8¢ RARE Printers Waste Strip of Three Stamps - Stuart Katz

Custom Sku: SK-27733

$47.00

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C78, Mint NH 11¢ Misperfed Error Margin Block of Four Airmail Stamps Stuart Katz

Custom Sku: SK-28112

$89.30

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1731, 13¢ Misperfed Error Pair With Normal Mint NH - Stuart Katz

Custom Sku: SK-27456

$18.75

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C127, Mint NH 45¢ Misperfed Error Block of Four Airmail Stamps - Stuart Katz

Custom Sku: SK-28114

$89.30

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1283B, Mint NH 5¢ Large Perf Shift Block of Four WoW - Stuart Katz

Custom Sku: SK-28104

$70.50

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1510, Mint NH 10¢ Large Perf Shift Plate Block of Four WoW - Stuart Katz

Custom Sku: SK-28105

$42.30

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2403, Mint NH 25¢ Diagonal Perf Shift Pair North Dakota Error - Stuart Katz

Custom Sku: SK-28107

$46.95

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1414, MNH 6¢ Black Color Shift Makes Blurry Image Error W/Normal - Stuart Katz

Custom Sku: SK-28086

$17.81

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1424, Mint NH 6¢ Scarce Perf Shift Error Pair - MacARTHUR - Stuart Katz

Custom Sku: SK-28109

$28.15

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1431, Unused 8¢ Diagonal Misperforation Error Block of Four - Stuart Katz

Custom Sku: SK-28338

$37.60

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1455a, Yellow Color Omitted MAJOR ERROR Mint NH - Stuart Katz

Custom Sku: SK-27621

$211.50

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2018, MNH 20¢ Partial Black Color Missing Pair With Normal - Stuart Katz

Custom Sku: SK-28093

$70.50

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1900, Mint NH 5.2¢ Misperforation Error Strip of Five - Sleigh - Stuart Katz

Custom Sku: SK-28321

$23.50

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C90, MNH 31¢ Two Way Misperf Shift Airmail Plane Stamp - Stuart Katz

Custom Sku: SK-27976

$23.45

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1800, 22¢ Scarce Misperfed Block of Four Error Stamps Mint NH - Stuart Katz

Custom Sku: SK-27453

$47.00

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1894b, MNH 20¢ Flag Imperforate Between Error Strip of Ten CV $1250 Stuart Katz

Custom Sku: SK-27942

$935.30

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413, Used 2¢ FVF Scarce Genuine Coil Strip of 5 CV $ 250+ - Stuart Katz

Custom Sku: SK-27671

$225.00

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1759, MNH 15¢ HUGE PERF Shift Error Mars Plate Block of Four - Stuart Katz

Custom Sku: SK-27959

$235.00

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