PRODUCT FILTERS

Condition
Grade
Certification
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United States

Products found: 21248
Newest Items First
96 Per Page
C88 26¢ Full Reverse Printing Under Gum Error Plate Block W/Normal * Stuart Katz
$225.00
Best Offer
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1786b, 15¢ Flowers Imperforate Error Block of Four With PL# - Stuart Katz
$140.00
Best Offer
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36 Used 12¢ - VF For Issue - Lightly Cancelled Cat $350.00 - Stuart Katz
$195.00
Best Offer
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155 Used 90¢ Completely Sound Stamp - VF Cat $350.00 - Stuart Katz
$225.00
Best Offer
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J60 Mint NH 2 Cent Postage Due Stamp With PL# Cat $600.00 - Stuart Katz
$235.00
Best Offer
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R101c, Used Superb $50 Revenue Perforated Stamp - Stuart Katz
$275.00
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R82a, Used XF $2 Revenue Imperforate Stamp A GEM - Stuart Katz
$130.00
Best Offer
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Greetings from America Sheet of 50 34¢ Stamps Scott 3561-3610 - Stuart Katz
SK-19798
$25.95
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2012 Bobcat 1 Cent Coil Strip 5 Postage Stamps Scott 4672
$3.95
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Arctic Animals 33¢ Sheet of 15 Postage Stamps Scott 3292a - Stuart Katz
SK-19801
$11.95
Best Offer
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2344 Var, Red Color Missing From Top Stamp Mint NH VERY RARE! -- Stuart Katz
$150.00
Best Offer
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TD100, NEBRASKA Test Stamp In Black - Superb NH - Stuart Katz
$75.00
Best Offer
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549, Mint NH F-VF Plate Block of Six Stamps CV $125 -- Stuart Katz
$65.00
Best Offer
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1756, HUGE Misperforation Error 15¢ George M Cohan Mint NH ------ Stuart Katz
$24.95
Best Offer
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446, RARE Used 4¢ Line Pair With PSAG Graded Certificate - Stuart Katz
$850.00
Best Offer
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320A, Mint 2¢ XF NH Type II Lake Color Imperforate Pair - Stuart Katz
$225.00
Best Offer
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4144, $4.60 Air Force One Priority Mail Sheet of Twenty Stamps VF - Stuart Katz
SK-08909
$115.00
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1276, Mint NH Misperforated Error Plate Block 5¢ Christmas - Stuart Katz
$125.00
Best Offer
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C150a, Die Cutting Omitted on Front ERROR PL# Block Cat $1,400.00 - Stuart Katz
$1,195.00
Best Offer
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1484a Imperforate Between PL# Block of 24 Stamps (12 Pairs) CV $1920 Stuart Katz
$1,495.00
Best Offer
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2578, 29¢ Two Way Misperforation Error Christmas Stamp ** Stuart Katz
$45.00
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489, Mint NH Line Strip of Four Stamps Cat $90.00 - Stuart Katz
$45.00
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O122, RARE Mint NH 50¢ Official Stamp With Sideographer's Initials - Stuart Katz
$425.00
Best Offer
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1197, 4¢ Louisiana Large Perforation Shift Design Change Error -- Stuart Katz
$24.95
Best Offer
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RW2, Mint VF NH - NO Skips or Bends FRESH! With PFC Certificate - Stuart Katz
$575.00
Best Offer
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C96a, Stunning Color Shift Error Pair Inscription Missing! * Stuart Katz
$95.00
Best Offer
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1284 Var, Block With Gutter Space Between Stamps With PFC Cert - Stuart Katz
$250.00
Best Offer
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C71, 20¢ Spectacular Two Way Misperforated Error Airmail Stamp - Stuart Katz
$75.00
Best Offer
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1541a, 10¢ Minerals HUGE Color Shift Error Block With Normal MNH -- Stuart Katz
$250.00
Best Offer
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1443a, 8¢ Scarce Misperfed Error Block Of Four Stamps Mint NH * Stuart Katz
$45.00
Best Offer
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1841a, 15¢ Misperfred Right Down The Middle Error Block Of Four + Stuart Katz
$125.00
Best Offer
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1690, 13¢ Outstanding Set Of Three Different Errors With Normal * Stuart Katz
$125.00
Best Offer
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1394, 8¢ Two Way Misperforated Error Plate Block of Six Mint NH * Stuart Katz
$75.00
Best Offer
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2585, 29¢ Imperforate Pair "Printers Waste" Still Nice! - Stuart Katz
$95.00
Best Offer
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1284, 3¢ Two Different Misperforation Errors Mint NH With Normal * Stuart Katz
$45.00
Best Offer
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1763a, 15¢ Misperfed Error Owls PB Of Four Inscription Missing - Stuart Katz
$95.00
Best Offer
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1804 Var, Mint NH Imperforate Pair (Printers Waste) Scarce! * Stuart Katz
$65.00
Best Offer
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1338, 6¢ Block of Six With Imperforate Margin Error Mint NH * Stuart Katz
$50.00
Best Offer
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617, VF Mint NH Scarce Top Sheet of 50 1¢ Stamps Brookman $400.00 -- Stuart Katz
$275.00
Best Offer
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C85, 11¢ Two Way Misperforated Error Block Inscription Missing * Stuart Katz
$250.00
Best Offer
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2443, Excellent Color Shift Error Double Seagulls Complete Booklet - Stuart Katz
$150.00
Best Offer
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1560b, Full Horiz Gutter Between Stamps & Color Missing PFC Cert - Stuart Katz
$995.00
Best Offer
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PS14, $1 Savings Stamp WHOLESALE LOT OF 88 Stamps Cat $1100.00++ - Stuart Katz
$395.00
Best Offer
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2578, 29¢ Two Way Misperforation Error Christmas Stamp With Normal * Stuart Katz
$45.00
Best Offer
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2014, Partial Reverse Printing Under Gum Error Sheet of 50 - Stuart Katz
$150.00
Best Offer
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Classic American Aircraft Sheet of Twenty 32 Cent Stamps Scott 3142a
SK-08819
$12.95
Best Offer
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J94 Var, Mint Dry Gum Variety - Fairly Scarce! Cat $70.00 - Stuart Katz
$40.00
Best Offer
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1446, Mint NH 8¢ Drastically Misperforated Error Block W/Normal - Stuart Katz
$60.00
Best Offer
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617, VF Mint NH Scarce Top Sheet of 50 1¢ Stamps Brookman $400.00 - Stuart Katz
$275.00
Best Offer
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1547c, VF NH 10¢ Green Color Omitted Error With APS Cert Stuart Katz
$400.00
Best Offer
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1472, Mint 8¢ Misperfed ERROR Block of Four Santa Stamps - Stuart Katz
$50.00
Best Offer
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575, Mint XF NH Left Side Plate Block of Six Stamps A GEM! -- Stuart Katz
$90.00
Best Offer
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C125b, Mint VF NH Light Blue Color Omitted Error APS Cert - Stuart Katz
$475.00
Best Offer
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QE2a Mint NH VF Plate Block of Six - Dry Printing CV $135.00 Stuart Katz
$75.00
Best Offer
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3830De 37¢ Egret "USPS" Microprinted on Bird's Breast Cat $110.00 - Stuart Katz
SK-07708
$45.00
Best Offer
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622-23, Two VF NH Plate Blocks of Six BEAUTIES! Cat $625.00 - Stuart Katz
$450.00
Best Offer
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1285, Large Misperforation ERROR Block of 8¢ Einstein Stamps - Stuart Katz
$49.95
Best Offer
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RW30, Mint XF NH DUCK Plate Block of Four Cat $450.00 - Stuart Katz
$275.00
Best Offer
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1205, Large Misperforation Scarce ERROR Block of 4¢ Stamps MNH - Stuart Katz
$75.00
Best Offer
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1591, MNH 9¢ U.S. Capital Misperforation ERROR Strip of 3 Stamps - Stuart Katz
$15.00
Best Offer
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1382, 6¢ Mint NH Large Color Shift Error Football Stamp - Stuart Katz
$24.95
Best Offer
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2075, RARE ERROR Sheet of 50 20¢ Stamps Credit Union Mint NH - Stuart Katz
$500.00
Best Offer
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C116 Complete Sheet of 50 FR. Junipero Serra 44 Cent Airmail Stamp - Stuart Katz
c116
$69.95
Best Offer
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2979, 32¢ Carousel Horses Complete Sheet of 20 Stamps - Stuart Katz
SK-16993
$11.95
Best Offer
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426, Mint NH Plate Block With "PINK" Aniline Back VERY RARE! - Stuart Katz
$400.00
Best Offer
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2579a Var SHEET OF 50 - IMPERF PAIRS & DOUBLE PERF ERROR Cat $4,375.00+
$1,750.00
Best Offer
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All Over Back Gold Medal Flour Advertising Cover With Enclosure - Stuart Katz
$69.99
Best Offer
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1930 Gray Horse, OKLA RARE Horse Fancy Cancel Registered Cover -- Stuart Katz
$450.00
Best Offer
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559, Mint XF/Superb NH 7¢ JUMBO - Well Centered Stamp! - Stuart Katz
$75.00
Best Offer
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General Upholsterers ALL OVER 3/15/1922 Advertising Cover - Stuart Katz
$44.99
Best Offer
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C5, Mint H/NH VF/XF Block of Four Airmail Stamps Cat $360.00 - Stuart Katz
$225.00
Best Offer
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OK Brand of Beans 1893 Rochester, NY Advertising Cover - Stuart Katz
$45.00
Best Offer
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Coe Electrical Contracting All Over Yellow 1932 Advertising Cover - Stuart Katz
$54.99
Best Offer
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567, RARE XF 20¢ "Worden" Wash, DC First Day Cover Cat $600.00 - Stuart Katz
$350.00
Best Offer
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All Over J.A. Fay & Co Patent Woodworking Machines Advertising Cover Stuart Katz
$69.99
Best Offer
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Meyer's Iron Frame Piano Advertising Cover - Stuart Katz
$69.99
Best Offer
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2114, RARE Misperforation Error P.B. With Gutter! Mint NH - Stuart Katz
$75.00
Best Offer
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C92a, 31¢ Large Color Shift Error Makes For Doubling Of Design - Stuart Katz
$49.95
Best Offer
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298, Used XF 8¢ Panama Canal Stamp GEM QUALITY - Stuart Katz
$75.00
Best Offer
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1731c, MNH With All Colors Omitted Major Error In Pair - Stuart Katz
$750.00
Best Offer
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2062b, Mint NH Black Color Omitted Error Plate Block With Normal - Stuart Katz
$350.00
Best Offer
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441, Mint Superb NH 1¢ Nicely Centered Coil Pair - Stuart Katz
$150.00
Best Offer
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483, Mint Superb OG NH Plate Block of Six Stamps Cat $200.00 - Stuart Katz
$169.00
Best Offer
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390, Mint VF NH 1¢ Coil Line Pair Cat $72.50 - Stuart Katz
$40.00
Best Offer
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152, Used 15¢ VF Very Light Cancel Well Centered Cat $210.00 - Stuart Katz
$190.00
Best Offer
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1304, Mint NH 5c Pair - RARE MISCUT & MISPERFORATION ERROR - Stuart Katz
$50.00
Best Offer
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C81, 21¢ Airmail With Tagging Shift Error Looks Like 2X Impression - Stuart Katz
$75.00
Best Offer
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1735, Major Fold Over ERROR Plate Block of Nine 15¢ Stamps MNH - Stuart Katz
$325.00
Best Offer
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RW55, Snow Goose Federal Duck Stamp VF OG NH - Stuart Katz
rw55
$12.50
Best Offer
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1307, RARE Reverse Printing Under Gum ERROR Complete Sheet of 50 - Stuart Katz
$300.00
Best Offer
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C57, RARE Misperfed ERROR In Complete Sheet of 50 Stamps - Stuart Katz
$250.00
Best Offer
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444, Used 2¢ Washington VF Quality Coil Stamp - Stuart Katz
$30.00
Best Offer
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C81, RARE Reverse Printing Under Gum ERROR Plate Block Mint NH - Stuart Katz
$75.00
Best Offer
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1238, Blue Color Missing From Stamp ERROR - VERY RARE! Mint NH - Stuart Katz
$750.00
Best Offer
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583, MNH 2¢ Perforation 10 Plate Block Of Four Stamps Cat $110.00 -- Stuart Katz
$40.00
Best Offer
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566, Mint 15¢ VF NH Liberty Block of Six Stamps Cat $210.00 - Stuart Katz
$75.00
Best Offer
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