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1769, 15¢ Block Of Four With Full Gutter Between Stamps RARE * Stuart Katz
$376.00
Uncertified, Multi-Color, 15 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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2073, 20¢ Wonderful Misperfed Error Block With Gutter * Stuart Katz
$75.15
Uncertified, Multi-Color, 20 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1560, 60b Var Full Horiz Gutter Between Stamps & Color Missing - Stuart Katz
$465.30
Uncertified, Multi-Color, 10 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1281, 3¢ PB Block Misplaced Pins Misperforation Error Mint NH * Stuart Katz
$47.00
Uncertified, Violet, 3 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1393, 6¢ Fold Over Error Makes For Almost A Full Gutter Pair MNH * Stuart Katz
$164.50
Uncertified, Multi-Color, 6 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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3031 Var Two Different Color Varieties Look Like Color Omitted PF * Stuart Katz
$470.00
PF, Multi-Color, 1 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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C88, 26¢ Full Reverse Printing Under Gum Error Zip Block W/Normal * Stuart Katz
$183.30
Uncertified, Multi-Color, 26 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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2703a, 29¢ Severely Over Inked Minerals Zip Block * Stuart Katz
$141.00
Uncertified, Multi-Color, 29 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1950, 20¢ Misperfed Error Plate Block FDR Stamps * Stuart Katz
$47.00
Uncertified, Ultramarine, 20 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1727, 13¢ Spectacular Color Shift Error With Normal Stamp * Stuart Katz
$23.45
Uncertified, Multi-Color, 13 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1455, Large Black Color Shift Error Zip Block Mint NH * Stuart Katz
$56.40
Uncertified, Multi-Color, 8 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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2062b, Mint VF NH Color Omitted ERROR Block of Four With Normal - Stuart Katz
$187.95
Uncertified, Multi-Color, 20 Cent, VF (Very Fine), Mint Never Hinged/MNH, Historical Events
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1563, 10¢ Misperforation Error With Inscription Missing! * Stuart Katz
$42.30
Uncertified, Multi-Color, 10 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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Felix The Cat Fancy Cancellations & More Stunning Cover - Stuart Katz
$487.50
Fancy Cancel, Uncertified, Multi-Color, Ungraded, Used, Cats
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1551, 10¢ Scarce Perforation Shift Error PR Showing Gutter Mint NH * Stuart Katz
$70.50
Uncertified, 10 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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C94a, PL# In Two Different Colors Error? * Stuart Katz
$18.75
Uncertified, Multi-Color, 21 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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2011, Reverse Printing Under Gum ERROR With Normal Mint NH - Stuart Katz
$47.00
Uncertified, Carmine, 20 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1727, HUGE Color Shift ERROR 13¢ Recording Stamp With Normal MNH Stuart Katz
$18.79
Uncertified, Multi-Color, 13 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1436, Multiple Color Shift ERROR 8¢ Dickinson With Normal Mint NH - Stuart Katz
$70.50
Uncertified, Multi-Color, 8 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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2980a, Mint VF NH Block Black Color Omitted Error APS Cert - Stuart Katz
$846.00
APEX, Multi-Color, 32 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1949a Two 20¢ Misperforated ERROR Panes In Complete Booklet - Stuart Katz
$37.60
Uncertified, Ultramarine, 20 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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RW30, Mint XF NH $3 Duck Plate Block of Four Stamps Cat $450.00 - Stuart Katz
$300.00
Uncertified, Multi-Color, $3.00, XF (Extremely Fine), Mint Never Hinged/MNH, Ducks
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1931a, Very Dramatic Misperfed ERROR Plate Block Mint NH - WoW - Stuart Katz
$79.90
Uncertified, Multi-Color, 18 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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483, Mint F/VF NH Block of Four & Pair Cat $150.00 - Stuart Katz
$75.00
Uncertified, Violet, 3 Cent, F/VF (Fine/Very Fine), Mint Never Hinged/MNH, Politicians
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RW41, Mint VF Sheet of 30 $5 Duck Stamps CV $648.00 - Stuart Katz
$300.00
Uncertified, Multi-Color, $5.00, VF (Very Fine), Mint Never Hinged/MNH, Ducks
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497, Used 10¢ VF Coil Line Strip of Four Stamps CV $235+ - Stuart Katz
$120.00
Uncertified, Yellow, 10 Cent, VF (Very Fine), Used, Politicians
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1150, Mint LH With Obstruction ERROR Unusual Item! - Stuart Katz
$37.55
Uncertified, Multi-Color, 4 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1592, RARE ERROR Sheet of 100 10¢ Right to Petition Stamps Mint NH - Stuart Katz
$470.00
Uncertified, Violet, 10 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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Enameline Heel & Edge Stain Libby & Estes Advertising Cover - Stuart Katz
$10.00
Uncertified, Ungraded, Used, Business, Industry, Careers, 1891-1900
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Swft's Ham & Bacon Double Sided 1903 Advertising Cover - Stuart Katz
$14.00
Uncertified, Ungraded, Used, Bacon, 1901-1910
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The Colonial Hotel Mt. Clemens, MI 1915 Advertising Cover - Stuart Katz
$14.00
Uncertified, Ungraded, Used, Hotel, 1911-1920
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483, 3¢ Mint Superb NH Line Block of Eight Stamps Cat $200.00 - Stuart Katz
$150.00
Uncertified, Violet, 3 Cent, Superb, Mint Never Hinged/MNH, Politicians
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589, 8¢ Mint VF NH Block of Four Stamps Cat $230.00 - Stuart Katz
$99.00
Uncertified, Olive, 8 Cent, VF (Very Fine), Mint Never Hinged/MNH, Politicians
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Multicolor Int'L Stock Food Adv Cover F & B With Vivid Enclosure - Stuart Katz
$99.99
First Day of Issue, Uncertified, 20 Cent, Ungraded, Used, FDC, 1923
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Multicolor Standard Rice Flakes Cereal Advertising Cover - Stuart Katz
$20.00
Uncertified, Ungraded, Used, Cereal, 1931-1940
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Blue & Gold Colored Meyers Co. Beaver Falls, PA Advertising Cover - Stuart Katz
$14.00
Uncertified, Ungraded, Used, Business, Industry, Careers, 1901-1910
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Multicolor Butter-Krust Bread Embossed Cartoon Advertising Postcard Stuart Katz
$14.00
Uncertified, Ungraded, Used, Business, Industry, Careers, 1911-1920
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Sash, Doors & Blinds 4/2/1898 All Over Advertising Cover - Stuart Katz
$11.00
Uncertified, Ungraded, Used, Business, Industry, Careers, 1891-1900
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C39, Misperforation Error Block of Six 6¢ Airmail Stamps Mint NH - Stuart Katz
$84.55
Uncertified, Carmine, 6 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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2529, Color Shift & Misperforation ERROR Pairs With Normal WoW - Stuart Katz
$46.95
Uncertified, Multi-Color, 19 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1866, 37¢ Misperf Error Makes For Change Of Design With Normal - Stuart Katz
$14.05
Uncertified, Ultramarine, 37 Cent, Ungraded, Mint Never Hinged/MNH, Error
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528, Mint VF NH Monogram Top Plate Block of Six Stamps Cat $300.00 - Stuart Katz
$150.00
Uncertified, Carmine, 2 Cent, VF (Very Fine), Mint Never Hinged/MNH, Politicians
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496, Mint Superb NH GEM 5¢ Coil Pair - Stuart Katz
$95.00
Uncertified, Ultramarine, 5 Cent, Superb, Mint Never Hinged/MNH, Politicians
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390, Mint XF/Superb NH 1¢ Nicely Centered Coil Pair - Stuart Katz
$195.00
Uncertified, Green, 1 Cent, Superb, Mint Never Hinged/MNH, Politicians
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344V, Mint XF NH 2¢ Vertical Imperforate Coil Pair Cat $50.00+ --- Stuart Katz
$40.00
Uncertified, Carmine, 2 Cent, XF (Extremely Fine), Mint Never Hinged/MNH, Politicians
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441, Mint XF/Superb NH 1¢ Nicely Centered Coil Pair - Stuart Katz
$65.00
Uncertified, Green, 1 Cent, Superb, Mint Never Hinged/MNH, Politicians
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70, Used 24¢ VF/XF Scarce Well Centered Stamp Cat $300.00 - Stuart Katz
$295.00
Uncertified, 24 Cent, VF/XF (Very Fine/Extremely Fine), Used, Politicians
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25, Used 3¢ XF Very RARE Centered So Nice! - Stuart Katz
$400.00
Uncertified, 3 Cent, XF (Extremely Fine), Used, Politicians
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