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620, Mint VF HR In Selvage Only - 2¢ Plate Block of Eight * Stuart Katz

$125.00

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749, Mint VF NH 10¢ Top Plate Block of Six ** Stuart Katz

$24.95

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620, Mint VF HR on Two Stamps - 2¢ Plate Block of Eight * Stuart Katz

$109.00

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549, Mint FVF NH 2¢ Left Side Plate Block of Six *** Stuart Katz

$75.00

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C90, Mint NH 31¢ Reverse Printing Under Gum Freak Error - Stuart Katz

$51.70

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C81, Mint NH 21¢ Reverse Printing Under Gum Freak Error - Stuart Katz

$51.70

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2544, MNH $3 Misperf Freak Error Plate Block Space Shuttle * Stuart Katz

$277.30

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487, Mint NH Coil Line Pair From Freshly Broken Roll *-- Stuart Katz

$185.00

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548, Mint NH 1¢ VF Plate Block of Six Stamps CV $115 * Stuart Katz

$85.00

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548, Mint NH 1¢ VF Plate Block of Six Stamps CV $115 - Stuart Katz

$75.00

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C11, Mint NH - WHOLESALE Lot Of Twelve Airmail Stamps CV $120 - Stuart Katz

$42.95

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1731c, MNH With All Colors Omitted Major Error In Pair -- Stuart Katz

$705.00

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70c, Used 24¢ Violet Shade Blue Cancel PFC Certificate CV $2,300.00 Stuart Katz

$1,400.00

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

$611.00

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1919 Unused War Savings Certificate For WS4 Stamps * RARE! ** Stuart Katz

$495.00

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248, Mint XF NH GEM 2¢ With Imprint - PFC Certificate - Stuart Katz

$495.00

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297, Mint NH 5¢ XF Stamp And Very Well Centered With PF Certificate* Stuart Katz

$350.00

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2479b, Mint VF NH 19¢ Red Color Omitted Error PSE Cert - Stuart Katz

$277.30

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2550a, Mint VF NH 29¢ Imperforate Error - Cole Porter - Stuart Katz

$329.00

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2031a, Mint VF NH 22¢ Litho Colors Omitted Error With PSE Cert - Stuart Katz

$611.00

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1578b, Mint VF NH 10¢ Brown & Blue Colors Omitted Error PFC Cert - Stuart Katz

$846.00

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1556b, Mint VF NH 10¢ Dark Blue Color Omitted Error With APS Cert - Stuart Katz

$376.00

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573, Mint NH $5 XF GEM - Center Line Block * Stuart Katz

$750.00

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1584, Large Misperfed Error 3¢ Stamp Hard to find! Mint NH - Stuart Katz

$18.75

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4994a, Coastal Birds Sheet of 20 Post Card - Stamps - Stuart Katz

$27.95

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Contemporary Boutonniere Sheet of 20 Current Rate Wedding Stamps Scott 5457

$19.63

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1529, Mint NH 10¢ Skylab Large Color Shift Freak Error * Stuart Katz

$140.06

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4622b, Bonsai Trees Booklet Pane of 20 - Stamps - Stuart Katz

$25.27

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771, Unused NH 16¢ Scarce Center Line Block * Stuart Katz

$55.00

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409, Mint VF NH 2¢ PB Printed With Analine Ink RARE! ** Stuart Katz

$149.00

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615, Mint FVF NH 2¢ Left Side Plate Block of Six - Stuart Katz

$55.00

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615, Mint VF NH 2¢ Left Side Plate Block of Six - Stuart Katz

$59.95

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614-16, Mint VF NH Right Side Plate Blocks of Six * Stuart Katz

$395.00

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615, Mint FVF NH 2¢ Left Side Plate Block of Six --- Stuart Katz

$55.00

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614-16, Mint VF NH Left Side Plate Blocks of Six ** Stuart Katz

$395.00

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615, Mint FVF NH 2¢ Left Side Plate Block of Six -- Stuart Katz

$55.00

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615, Mint NH 2¢ Top Plate Block of Six - Stuart Katz

$55.00

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616, Mint VF NH Bottom Plate Block of Six CV $375 * Stuart Katz

$250.00

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618, Mint VF NH Plate Block of Six CV $85.00 * Stuart Katz

$45.00

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620, Mint FVF NH 2¢ Plate Block of Eight * Stuart Katz

$175.00

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628, Mint VF NH 5¢ Plate Block of Six - ** Stuart Katz

$55.00

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628, Mint VF NH 5¢ Plate Block of Six - Light Shade * Stuart Katz

$55.00

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620, Mint VF NH 2¢ Plate Block of Eight *---- Stuart Katz

$225.00

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620, Mint VF NH 2¢ Plate Block of Eight * Stuart Katz

$225.00

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2349a, Mint VF NH 22¢ Black Color Omitted Block Error PFC Cert Stuart Katz

$540.50

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617-19, Mint VF NH Plate Blocks of Six CV $427 - Stuart Katz

$295.00

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373, Mint XF NH 2¢ Left Side Plate Block of Six Stamps *** Stuart Katz

$275.00

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2247a, Mint VF NH 22¢ Silver Color Omitted Top Stamp Error PFC Cert Stuart Katz

$559.30

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