United States

C86, Mint VF NH 11¢ Violet Color Shifted Down Error With Normal - Stuart Katz

$37.55

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647, Mint VF NH 2¢ Complete Sheet of 100 Stamps CV $950 - Stuart Katz

$695.00

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644, Mint VF NH 2¢ Complete Sheet of 50 Stamps CV $385 - Stuart Katz

$295.00

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1861, MNH 20¢ Misperfed Strip 10 Stamps Big And Small Stamp Errors - Stuart Katz

$28.15

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1282, MNH 4¢ Lincoln Misperfed Freak Error Block of 4 Stamps - Stuart Katz

$56.35

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954, MNH 3¢ Misperf Shift Freak Error Block of 4 California Stamps - Stuart Katz

$117.50

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2031, MNH Misperfed Error Makes For Change of Design With Normal -- Stuart Katz

$23.50

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1856c, Mint NH Horizontally Imperforate Between ERROR Sheet - SPECIAL OFFERING!

$56.35

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Title IX Sheet of 20 Current Rate Postage Stamps Scott 5671a

$19.63

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915b, 5¢ RARE Used Reverse Flag Colors Block Cat $600.00 - Stuart Katz

$235.00

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Par Avion, MNH Two Way Perforation Freak Error Pane UNUSUAL! - Stuart Katz

$187.06

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1541a, MNH 10¢ Reverse Offset Printed Under Gum Error Block - Stuart Katz

$70.50

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1582c, MNH 2¢ Tagging Omitted And Double Paper Error Sheet CV $750+ Stuart Katz

$465.30

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4407a, MNH 44¢ Horizontal Imperforate Pair Error - Stuart Katz

$559.30

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1734, MNH 13¢ Misperfed Freak Error Pair Indian Head Penny - Stuart Katz

$23.45

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1716, MNH 13¢ Nice Two Way Perf Shift Freak Error Pane of 40 Stamps Stuart Katz

$653.30

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1094, Mint NH 4¢ Misperforated Error Freak Plate Block - Stuart Katz

$37.55

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390, Used 1¢ Coil Pair Well Centered And Very Fresh! * Stuart Katz

$45.00

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383V, Mint NH Vertical Imperforate Coil Line Strip of 4 ** Stuart Katz

$59.95

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494, Mint NH 3¢ Coil Pair Well Centered And Very Fresh! - Stuart Katz

$65.00

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390, Used 1¢ Coil Pair Well Centered And Very Fresh! ** Stuart Katz

$45.00

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492, MNH WHOLESALE Group of Five Coil Pairs - Very Fresh! CV $275 - Stuart Katz

$150.00

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1690, MNH 13¢ Dark Blue Color Shifted UP Plate Block Freak Error- Stuart Katz

$117.50

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1593, MNH 11¢ RARE Misperforation Shift Freak Error Sheet of 100 - Stuart Katz

$747.30

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390, Used 1¢ Coil Line Pair Well Centered And Fresh! - Stuart Katz

$85.00

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3555c, MNH 34¢ Imperforate Error Freak Block - VERY RARE! - Stuart Katz

$705.00

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2980b, MNH 32¢ Horizontal Imperforate Pair Error - Stuart Katz

$559.30

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492, Mint NH Coil Pair Well Centered And Very Fresh! ** Stuart Katz

$45.00

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1338F, MNH 8¢ Misperf Shift Freak Error Sheet of 100 Stamps - Stuart Katz

$705.00

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494, Mint NH 3¢ Coil Pair Well Centered And Very Fresh! -- Stuart Katz

$70.00

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548, Mint F-VF NH 1¢ Plate Block of Six Stamps PO FRESH! - Stuart Katz

$75.00

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383, Mint Superb NH Block of 4 Imperforate Stamps -- Stuart Katz

$39.95

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1456-59a, Mint NH 8¢ RARE Misperforated Error Freak Plate Block - Stuart Katz

$46.95

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905, MNH 3¢ PO Tape Splice & Rejection Markings Sheet of 100 Error - Stuart Katz

$140.06

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548, Mint VF NH 1¢ Plate Block of Six Stamps PO FRESH! - Stuart Katz

$85.00

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383V, Mint NH Vertical Imperforate Coil Line Strip of 4 * Stuart Katz

$59.95

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492, Mint NH Coil Pair Well Centered And Very Fresh! * Stuart Katz

$39.95

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390, Used 1¢ XF Coil Pair Well Centered And Very Fresh! * Stuart Katz

$69.95

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644, Mint NH 2¢ Plate Block of Six Stamps * Stuart Katz

$29.95

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487, Mint VF NH Coil Pair Well Centered And Very Fresh! ** Stuart Katz

$65.00

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1757a, Mint NH 13¢ Misperfed Freak Error Capex Block of Eight -- Stuart Katz

$70.50

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657, Mint VF NH 2¢ Top Plate Block of Six Stamps -- Stuart Katz

$29.95

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383H, Mint VF NH Horizontal Imperforate Coil Strip of 4 - Stuart Katz

$49.95

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688, Mint VF NH 2¢ Top Plate Block of Six Stamps - Stuart Katz

$35.00

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1818, Mint NH 18¢ Misperfed Freak Error Plate Block - Stuart Katz

$42.30

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NEW U.S. Flags Booklet of 20 - Postage Stamps

$19.95

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383H, Mint Superb NH Horizontal Imperforate Coil Strip of 4 - Stuart Katz

$59.95

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Madonna and Child Sheet of Fifty 32 Cent Postage Stamps Scott 3003

$32.95

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1470, Mint NH 8¢ Color Shift Freak Error Sheet of 50 Stamps - Stuart Katz

$559.30

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807, MNH 3¢ Misperforated Freak Error - Sheet of 100 Stamps -- Stuart Katz

$423.00

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1537a, MNH 10¢ Extra Perforation Rows Freaky Error Sheet - Stuart Katz

$559.30

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804, MNH 1¢ Erie, PA Precancel & Heavily Over Inked Error Sheet - Stuart Katz

$187.06

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807, MNH 3¢ Misperforated Freak Error - Sheet of 100 Stamps - Stuart Katz

$465.30

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807, MNH 3¢ Misperforated Freak Error - Sheet of 100 Stamps *-* Stuart Katz

$465.30

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807, MNH 3¢ Heavy Over Inking Freak Error - Sheet of 100 Stamps - Stuart Katz

$183.30

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807, MNH 3¢ Misperforated Freak Error - Block of 30 Stamps *- Stuart Katz

$140.95

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807, MNH 3¢ Misperforated Freak Error - Sheet of 100 Stamps * Stuart Katz

$465.30

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807, MNH 3¢ Misperforated Freak Error - Sheet of 100 Stamps -*- Stuart Katz

$423.00

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807, Mint 3¢ Paper Fold Freak Error And Tape Splice Block - Stuart Katz

$93.06

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807, Mint NH 3¢ Odd Inking Freak Error - Full Sheet of 100 Stamps - Stuart Katz

$93.06

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1473, MNH 8¢ Small Perf & Color Shift Error Freak Sheet of 50 - Stuart Katz

$187.06

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1326, Mint NH 5¢ Two Way Misperf Error Pair With Normal - Stuart Katz

$65.80

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1484a, MNH 8¢ Imperforate Between PL# Block of 8 Pairs RARE! - Stuart Katz

$935.30

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C20, Mint NH Superb GEM 25¢ With PSAG Graded 100 Certificate - Stuart Katz

$500.00

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908, Mint NH 1¢ RARE Misperfed Error of Block of 12 Stamps - Stuart Katz

$79.90

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C81, Mint NH 21¢ Blue Color Shifted Error Airmail Stamp -- Stuart Katz

$61.10

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1158, MNH 4¢ Dramatic Perf Shift Freak Error Plate Block - Stuart Katz

$56.35

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Edmonia Lewis Black Heritage Sheet Of 20 Current Rate Postage Stamps Scott 5663

$19.63

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1483a, MNH 8¢ Color Shifted Up Error Freak Full Sheet of 50 Stamps - Stuart Katz

$277.30

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Red Rose Pane of 18 - 29 Cent Postage Stamps 2490a

$16.95

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2389a, MNH RARE Misperfed Sheet of 50 Freak Error * Stuart Katz

$235.00

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1384, MNH 6¢ Misperfed Down The Middle Sheet! Freak Error * Stuart Katz

$1,875.30

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1336, Mint NH 5¢ Reverse Printing Under Gum EFO Error * Stuart Katz

$117.50

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1473, MNH 8¢ Remarkable Color Shift Misperf Freak Error * Stuart Katz

$83.66

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C81, MNH 21¢ Partial Reverse Printing Under Gum Plate Block Error * Stuart Katz

$117.50

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1508, MNH 8¢ Freaky Miscut Error PL# Block of 20 Stamps * Stuart Katz

$93.06

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1486, MNH 8¢ Misperforated Freaky Error Sheet of 40 Stamps * Stuart Katz

$559.30

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1460 Var, MNH 6¢ Sheet With Cylinder Flaw "Broken Circle" Error * Stuart Katz

$12.17

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1430a, MNH 8¢ Partial Reverse Printing Under Gum Block EFO Error * Stuart Katz

$46.95

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1477, MNH 8¢ Misperforated Freaky Error Sheet of 50 Stamps * Stuart Katz

$423.00

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C71, MNH 20¢ Full Reverse Printing Under Gum Zip Block Error * Stuart Katz

$465.30

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2476, MNH 1¢ Misperfed Full Sheet of 100 Stamps Freak Error * Stuart Katz

$747.30

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1439, MNH 8¢ Partial Color Missing Freaky Error Block of 14 Stamps * Stuart Katz

$56.35

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1435a, MNH 8¢ Space RARE PB Strip Partial Color Omitted Freak Error Stuart Katz

$559.30

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1485, MNH 8¢ Misperforated Freaky Error Sheet of 40 Stamps * Stuart Katz

$559.30

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1288b, Mint NH SPECTACULAR MISPERFORATED PANE ERROR

$164.50

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1507, MNH 8¢ Two Way Misperforated Freaky Error Sheet of 50 Stamps * Stuart Katz

$705.00

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1471, MNH 8¢ Perf Shift Freaky Error Block of Four Stamps * Stuart Katz

$56.35

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1435a, Preprint Paper Fold Creates HUGE Color Shift Freak Error - Stuart Katz

$935.30

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1254-57, Mint 5¢ Partial Reverse Printing Under Gum EFO Error * Stuart Katz

$70.50

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1557, MNH 10¢ Partial Reverse Printing Under Gum Zip Block Error * Stuart Katz

$46.95

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TD117 Var, RARE Imperforate Block of 4 - No Die Cutting * Stuart Katz

$495.00

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1470, MNH 8¢ Color Shift Freaky Error Sheet of 50 Stamps * Stuart Katz

$465.30

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1435a, MNH 8¢ Space RARE Strip With Double Perforations Freak Error Stuart Katz

$117.50

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Wisconsin Centennial Sheet of Fifty 3 Cent Postage Stamps Scott 957

$14.95

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Oregon Territory Centennial Sheet of Fifty 3 Cent Postage Stamps Scott 964

$14.95

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