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2072, 20¢ Love Block With Dramatic Misperforation ERROR WoW - Stuart Katz

$46.95

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C96a, 25¢ With Large Color Shift Error Makes For Doubling of Design Stuart Katz

$70.50

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631 Var, XF NH Without Any Gum breaker Ridges - Stuart Katz

$95.00

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5036 Imperforate Block ERROR Quilted Hearts With PL# B11111 - Stuart Katz

Réf.: SK-16481

$183.30

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1369, Zip Block Top Stamps Are Extra Large With Part "ZIP" Captured Stuart Katz

$23.50

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Kerbst Pharmacal Co. Capsules for Colds 4/30/32 Advertising Cover - Stuart Katz

$24.00

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Dobbins Soap Light Green All Over 6/24/1894 Advertising Cover Stuart Katz

$14.00

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C10a, Mint Never Hinged 10¢ Lindbergh Booklet Pane Cat $115.00 - Stuart Katz

$40.00

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190 Plus 190 With Greenish Black Shade Both VF Cat $180.00 - Stuart Katz

$150.00

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575-77, Mint VF VLH Plate Blocks of Six Stamps Cat $140.00 - Stuart Katz

$85.00

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240, Used VF/XF 50¢ Columbus Stamp Cat $175.00 - Stuart Katz

$125.00

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572, Mint $2 US Capital VF/XF NH Block of Four Cat $480.00+ - Stuart Katz

$325.00

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Western Military Academy Double Sided Advertising Cover - Stuart Katz

$17.00

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657, Mint NH XF Top Plate Block of Six Stamps -- Stuart Katz

$40.00

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581-91, Set of 11 F-VF NH/LH Blocks of Four VERY FRESH Cat $1421.00 Stuart Katz

$695.00

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496, Mint Superb NH GEM 5¢ Coil Pair -- Stuart Katz

$95.00

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1818, Perforation Shift Error Plate Block of Six B (18¢) Eagle - Stuart Katz

$56.40

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1818, Perforation Shift PL# Capture Error Plate Block B (18¢) Eagle Stuart Katz

$70.50

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617, VF Mint NH Top PL# Sheet of 50 1¢ Stamps Brookman $400.00 - Stuart Katz

$275.00

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BK96, VF Scarce 25¢ Complete Booklet - Stuart Katz

$39.95

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1467a, Misperfed Error Sheet Showing Full Gutter Between Stamps - Stuart Katz

$1,410.00

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1998, Very RARE Modern Misperforated ERROR Sheet of 20 32¢ Stamps - Stuart Katz

$465.30

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528, Mint VF LH 2¢ Full Plate Block of Six Stamps Cat $100.00 - Stuart Katz

$59.95

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3554-5c, RARE Die Cutting Omitted ERROR Pair 34¢ Olympics - Stuart Katz

$188.00

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905, Two Way Misperfed ERROR Block of 12 Printed on Double Paper - Stuart Katz

$164.50

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954, Misperforated ERROR Sheet of 50 California Gold 3¢ Stamps - Stuart Katz

$235.00

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2367, Nice Large Color Shift ERROR Sheet of 100 22¢ Stamps - Stuart Katz

$465.30

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1509, HUGE Misperforated ERROR Sheet of 100 10¢ US Flag Stamps - Stuart Katz

$653.30

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1764-7a Spectacular Misperforated ERROR Sheet of 40 15¢ Tree Stamps Stuart Katz

$935.30

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1484, Large Color Shift ERROR Plate Block of 12 8¢ Gershwin Stamps - Stuart Katz

$117.50

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578, 1¢ Mint NH VF/XF RARE Block of Four Cat $600.00++ - Stuart Katz

$350.00

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TG67B, Four Pounds Tobacco Tax Paid Stamp - Hard to Find! -- Stuart Katz

$175.00

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1096, 8¢ Very Scarce Reverse Printing ERROR With Normal Mint NH - Stuart Katz

$70.50

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2015, 20¢ Very Scarce Reverse Printing ERROR With Normal Mint NH - Stuart Katz

$47.00

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All Over Ad Tuttle & Co Book Sellers Rutland, VT 6/24/1890 - Stuart Katz

$69.99

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2635a, MNH 29¢ Alaska Black "USA 29" Omitted MAJOR ERROR - Stuart Katz

$352.50

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All Over Ad Cover Benziger Brothers Magazine With Frame NY 1905 - Stuart Katz

$59.99

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Sailing Boats St. Joseph, MO 6/15/1912 to Hanover, PA Stunning Cvr - Stuart Katz

$124.99

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Chas. L. Lockwoods Humorous Advertising Cover - Stuart Katz

$14.00

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C18, VF/XF NH 50¢ Zepp Airmail Block of Four Stamps Cat $300.00 - Stuart Katz

$175.00

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665, VF NH 7¢ Kansas Plate Block of Four Stamps Cat $700.00 - Stuart Katz

$425.00

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531, Mint 1¢ Superb NH Plate Block of Six Stamps Cat $200.00 - Stuart Katz

$165.00

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377, Mint 4¢ VF NH Block of Six Stamps VERY FRESH Cat $390.00 - Stuart Katz

$150.00

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536, Mint 1¢ F/VF NH Plate Block of Six Stamps Cat $400.00 - Stuart Katz

$225.00

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RW78A, White-Fronted Geese Federal DUCK Stamp Self-Adhesive Pane - Stuart Katz

Réf.: rw78a

$37.95

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153, Used 24¢ Nice Stamp With a Red Cancel Cat $235.00 - Stuart Katz

$40.00

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527, VF-XF NH 2¢ Bottom Plate Block of Six P.O. Fresh! - Stuart Katz

$300.00

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3205 Imperforate Sylvester/Tweety Bird Pad of 100 Panes Cat $1250.00 Stuart Katz

Réf.: SK-13753

$350.00

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