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90, Used 12¢ With Grill - VF With Red Cancel Cat $450.00 - Stuart Katz
$295.00
Uncertified, Black, 12 cent, VF (Very Fine), Used, Politicians
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631 Var, XF NH/LH Without Any Gum breaker Ridges - Stuart Katz
$85.00
Uncertified, Brown, Ungraded, Mint Never Hinged/MNH, Politicians
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2072, 20¢ Love Block With Dramatic Misperforation ERROR WoW - Stuart Katz
$46.95
Uncertified, Multi-Color, 20 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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C96a, 25¢ With Large Color Shift Error Makes For Doubling of Design Stuart Katz
$70.50
Uncertified, Multi-Color, 25 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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631 Var, XF NH Without Any Gum breaker Ridges - Stuart Katz
$95.00
Uncertified, Brown, XF (Extremely Fine), Mint Never Hinged/MNH, Politicians
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5036 Imperforate Block ERROR Quilted Hearts With PL# B11111 - Stuart Katz
$183.30
Uncertified, Multi-Color, First Class, VF (Very Fine), Mint Never Hinged/MNH, Heart
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1369, Zip Block Top Stamps Are Extra Large With Part "ZIP" Captured Stuart Katz
$23.50
Uncertified, Multi-Color, 6 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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Kerbst Pharmacal Co. Capsules for Colds 4/30/32 Advertising Cover - Stuart Katz
$24.00
Uncertified, Ungraded, Used, Medical
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Dobbins Soap Light Green All Over 6/24/1894 Advertising Cover Stuart Katz
$14.00
Uncertified, Ungraded, Used, Business, Industry, Careers, 1891-1900
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C10a, Mint Never Hinged 10¢ Lindbergh Booklet Pane Cat $115.00 - Stuart Katz
$40.00
Uncertified, Ultramarine, 10 Cent, Ungraded, Mint Never Hinged/MNH, Booklet
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190 Plus 190 With Greenish Black Shade Both VF Cat $180.00 - Stuart Katz
$150.00
Uncertified, Black, 30 Cent, VF (Very Fine), Used, Politicians
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575-77, Mint VF VLH Plate Blocks of Six Stamps Cat $140.00 - Stuart Katz
$85.00
Uncertified, Multi-Color, VF (Very Fine), Lightly Hinged, Politicians
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240, Used VF/XF 50¢ Columbus Stamp Cat $175.00 - Stuart Katz
$125.00
Uncertified, Black, 50 Cent, VF/XF (Very Fine/Extremely Fine), Used, Historical Events
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572, Mint $2 US Capital VF/XF NH Block of Four Cat $480.00+ - Stuart Katz
$325.00
Uncertified, Ultramarine, $2.00, VF/XF (Very Fine/Extremely Fine), Mint Never Hinged/MNH, Flags, National Emblems
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Western Military Academy Double Sided Advertising Cover - Stuart Katz
$17.00
Uncertified, Multi-Color, Ungraded, Used, 1911-1920
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657, Mint NH XF Top Plate Block of Six Stamps -- Stuart Katz
$40.00
Uncertified, Carmine, 2 Cent, XF (Extremely Fine), Mint Never Hinged/MNH, Historical Events
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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
Uncertified, Multi-Color, VF (Very Fine), Lightly Hinged, 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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1818, Perforation Shift Error Plate Block of Six B (18¢) Eagle - Stuart Katz
$56.40
Uncertified, Purple, 18 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1818, Perforation Shift PL# Capture Error Plate Block B (18¢) Eagle Stuart Katz
$70.50
Uncertified, Purple, 18 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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617, VF Mint NH Top PL# Sheet of 50 1¢ Stamps Brookman $400.00 - Stuart Katz
$275.00
Uncertified, Green, 1 Cent, VF (Very Fine), Mint Never Hinged/MNH, Historical Events
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BK96, VF Scarce 25¢ Complete Booklet - Stuart Katz
$39.95
Uncertified, 25 Cent, Ungraded, Mint Never Hinged/MNH, Booklet
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1467a, Misperfed Error Sheet Showing Full Gutter Between Stamps - Stuart Katz
$1,410.00
Uncertified, Multi-Color, 8 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1998, Very RARE Modern Misperforated ERROR Sheet of 20 32¢ Stamps - Stuart Katz
$465.30
Uncertified, Multi-Color, 32 Cent, VF (Very Fine), Mint Never Hinged/MNH
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528, Mint VF LH 2¢ Full Plate Block of Six Stamps Cat $100.00 - Stuart Katz
$59.95
Uncertified, Carmine, 2 Cent, VF (Very Fine), Lightly Hinged, Politicians
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3554-5c, RARE Die Cutting Omitted ERROR Pair 34¢ Olympics - Stuart Katz
$188.00
Uncertified, Multi-Color, 34 Cent, VF (Very Fine), Mint Never Hinged/MNH, Olympics
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905, Two Way Misperfed ERROR Block of 12 Printed on Double Paper - Stuart Katz
$164.50
Uncertified, Multi-Color, 3 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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954, Misperforated ERROR Sheet of 50 California Gold 3¢ Stamps - Stuart Katz
$235.00
Uncertified, Purple, 3 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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2367, Nice Large Color Shift ERROR Sheet of 100 22¢ Stamps - Stuart Katz
$465.30
Uncertified, Multi-Color, 22 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1509, HUGE Misperforated ERROR Sheet of 100 10¢ US Flag Stamps - Stuart Katz
$653.30
Uncertified, Multi-Color, 10 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1764-7a Spectacular Misperforated ERROR Sheet of 40 15¢ Tree Stamps Stuart Katz
$935.30
Uncertified, Multi-Color, 15 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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1484, Large Color Shift ERROR Plate Block of 12 8¢ Gershwin Stamps - Stuart Katz
$117.50
Uncertified, Multi-Color, 8 Cent, VF (Very Fine), Mint Never Hinged/MNH, Error
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578, 1¢ Mint NH VF/XF RARE Block of Four Cat $600.00++ - Stuart Katz
$350.00
Uncertified, Green, 1 Cent, VF/XF (Very Fine/Extremely Fine), Mint Never Hinged/MNH, Politicians
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TG67B, Four Pounds Tobacco Tax Paid Stamp - Hard to Find! -- Stuart Katz
$175.00
Uncertified, Ungraded, Used, Tobacco
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1096, 8¢ Very Scarce Reverse Printing ERROR With Normal Mint NH - Stuart Katz
$70.50
Uncertified, VF (Very Fine), Mint Never Hinged/MNH, Reverse Printing
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2015, 20¢ Very Scarce Reverse Printing ERROR With Normal Mint NH - Stuart Katz
$47.00
Uncertified, VF (Very Fine), Mint Never Hinged/MNH, Reverse Printing
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All Over Ad Tuttle & Co Book Sellers Rutland, VT 6/24/1890 - Stuart Katz
$69.99
Uncertified, Multi-Color, Ungraded, Used, Book Seller
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2635a, MNH 29¢ Alaska Black "USA 29" Omitted MAJOR ERROR - Stuart Katz
$352.50
Uncertified, Multi-Color, 29 Cent, VF (Very Fine), Mint Never Hinged/MNH, Alaska
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All Over Ad Cover Benziger Brothers Magazine With Frame NY 1905 - Stuart Katz
$59.99
Uncertified, Multi-Color, Ungraded, Used, Magazine
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Sailing Boats St. Joseph, MO 6/15/1912 to Hanover, PA Stunning Cvr - Stuart Katz
$124.99
Uncertified, Multi-Color, Ungraded, Used, Sailing
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Chas. L. Lockwoods Humorous Advertising Cover - Stuart Katz
$14.00
Uncertified, Multi-Color, Ungraded, Used, Humorous
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C18, VF/XF NH 50¢ Zepp Airmail Block of Four Stamps Cat $300.00 - Stuart Katz
$175.00
Uncertified, Multi-Color, 50 Cent, VF/XF (Very Fine/Extremely Fine), Mint Never Hinged/MNH, Airmail
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665, VF NH 7¢ Kansas Plate Block of Four Stamps Cat $700.00 - Stuart Katz
$425.00
Uncertified, Black, 7 Cent, VF (Very Fine), Mint Never Hinged/MNH, Politicians
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531, Mint 1¢ Superb NH Plate Block of Six Stamps Cat $200.00 - Stuart Katz
$165.00
Uncertified, Gray, 1 Cent, Superb, Mint Never Hinged/MNH, Politicians
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377, Mint 4¢ VF NH Block of Six Stamps VERY FRESH Cat $390.00 - Stuart Katz
$150.00
Uncertified, Brown, 4 Cent, VF (Very Fine), Mint Never Hinged/MNH, Politicians
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536, Mint 1¢ F/VF NH Plate Block of Six Stamps Cat $400.00 - Stuart Katz
$225.00
Uncertified, Gray, 1 Cent, F/VF (Fine/Very Fine), Mint Never Hinged/MNH, Politicians
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RW78A, White-Fronted Geese Federal DUCK Stamp Self-Adhesive Pane - Stuart Katz
$37.95
Uncertified, Multi-Color, $15, Ungraded, Mint Never Hinged/MNH, Ducks
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153, Used 24¢ Nice Stamp With a Red Cancel Cat $235.00 - Stuart Katz
$40.00
Uncertified, Purple, 24 Cent, Ungraded, Used, Politicians
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