United States

1453, MNH 8¢ Full Offset Printing Under Gum Plate Block Error - Stuart Katz

$164.50

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RW53, MNH XF/Superb $7.50 - With Graded 95 PSE Certificate - Stuart Katz

$45.00

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RW73b, MNH $15 2 Sigs Souvenir Sheet - Graded 90 PSE Certificate - Stuart Katz

$90.00

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RW54, MNH XF/Superb $10 - With Graded 95 PSE Certificate - Stuart Katz

$45.00

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RW57, MNH XF/Superb $12.50 - With Graded 95 PSE Certificate - Stuart Katz

$40.00

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562, Mint NH 10¢ ERROR - Misperf Stamp -- Stuart Katz

$37.60

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C39, MNH 6¢ - Misperforation Error Block of Ten Stamps - Stuart Katz

$46.95

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RW59, MNH XF/Superb $15 - With Graded 95 PSE Certificate - Stuart Katz

$115.00

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1716 Misperforated ERROR - 13¢ Bicentennial - Mint NH -- Stuart Katz

$18.75

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1289, MNH 20¢ - PL# Captured Misperforation Error Plate Block - Stuart Katz

$70.50

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RW83, MNH $25 Duck Plate Block Artist Signed! Very Scarce! * Stuart Katz

$450.00

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RW45, Mint XF NH $5 Duck Stamp PSE Graded 95 - SMQ $80 * Stuart Katz

$55.00

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664, Mint VF NH 6¢ Kansas - A Beautiful Block * Stuart Katz

$125.00

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1276, MNH 5¢ - Misperfed Error PL# Captured Plate Block * Stuart Katz

$56.35

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RW41, Mint XF NH $5 Duck Stamp PSE Graded 95 - SMQ $80 * Stuart Katz

$55.00

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1473, MNH 8¢ - MASSIVE Color Shift Error - WoW - Stuart Katz

$141.00

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RW31, Mint XF NH $3 Duck Stamp - Graded 90 PSE Certificate SMQ $175 Stuart Katz

$140.00

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1055b, Mint Superb NH 2¢ - With Graded 98 PSE Certificate - Stuart Katz

$45.00

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RW54, MNH $10 Duck Plate Block Artist Signed! Very Scarce! * Stuart Katz

$125.00

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1190, Mint NH 4¢ Nursing With HUGE Color Shift Error W/Normal * Stuart Katz

$23.50

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1727, MNH 13¢ HUGE Brown Color Shift Error Zip Block * Stuart Katz

$83.66

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RW51, Mint XF NH $7.50 Duck Stamp PSE Graded 95 - SMQ $70 * Stuart Katz

$45.00

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1369, MNH 6¢ - Misplaced Perf Pins Makes For JUMBO Stamps Error ** Stuart Katz

$56.40

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1122, Mint NH 4¢ - Misperfed Error Plate Block * Stuart Katz

$56.35

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1289, MNH 20¢ - Misperfed Error PL# Captured Plate Block * Stuart Katz

$70.50

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RW72, Mint VF NH $15 Duck Artist Signed!* Stuart Katz

$23.95

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RW55, Mint VF NH $10 Duck Artist Signed!* Stuart Katz

$19.95

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1479, MNH 8¢- Fantastic Yellow Color Shift Error Complete Sheet - Stuart Katz

$183.30

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2088, Mint NH 20¢ - Terrific Misperfed Error Pair - Stuart Katz

$42.30

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1046, Mint Superb NH 15¢ - With Graded 98 PSE Certificate - Stuart Katz

$65.00

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820, Mint NH/LH 15¢ - Misperfed Error Block * Stuart Katz

$56.35

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295, Mint XF/Superb NH 2¢ - Graded 95 Certificate - Stuart Katz

$300.00

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1047, Mint Superb NH 20¢ - With Graded 98 PSE Certificate - Stuart Katz

$65.00

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2041 Var, MNH 20¢ With Short Transfer - TEN Plate Blocks SCV $150. * Stuart Katz

$37.60

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1035c, Mint Superb NH 3¢ - With Graded 98 PSE Certificate - Stuart Katz

$89.00

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1611, MNH $2 Misperf Shift Error From Right Row * Stuart Katz

$117.50

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C85, 11¢ Sheet W/Pre Printing Folds And Misperf Error * Stuart Katz

$70.50

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C23c, Mint NH VF 6¢ In Scarce Ultramarine & Carmine Color PFC - Stuart Katz

$277.30

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1241, Mint NH 5¢ - Misperfed Error Plate Block * Stuart Katz

$70.50

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1757a, MNH 13¢ Sheet - Paper Fold Created A Remarkable Error * Stuart Katz

$117.50

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RW26, Mint XF NH $3 Duck Stamp - Graded 90 PSE Certificate SMQ $175 Stuart Katz

$140.00

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RW43, Mint XF/Superb NH $5 Duck Stamp - Graded 95 PSE Certificate Stuart Katz

$60.00

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1036a, Mint Superb NH 4¢ - With Graded 98 PSE Certificate - Stuart Katz

$89.00

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1527, Mint NH 10¢ - HUGE Misperfed Error Stamp * Stuart Katz

$23.50

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RW73, Mint VF NH $15 Duck Artist Signed!* Stuart Katz

$22.95

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1037, Mint Superb NH 4 1/2¢ - With Graded 98 PSE Certificate - Stuart Katz

$115.00

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3036, $ RED FOX Sheet In Original Post Office Packaging - Stuart Katz

$225.00

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RW29, Mint XF NH $3 Duck Stamp - PSE Graded 90 * Stuart Katz

$120.00

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RW21, Mint XF NH $2 Duck Stamp - PSE Graded 90 * Stuart Katz

$120.00

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RW23, Mint XF NH $2 Duck Stamp - PSE Graded 90 * Stuart Katz

$120.00

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RW66, Mint Superb NH $15 Duck Stamp - PSE Graded 98 * Stuart Katz

$110.00

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RW60, Mint Superb NH $15 Duck Stamp - PSE Graded 98 * Stuart Katz

$100.00

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RW32, Mint XF/Superb NH $3 Duck Stamp - PSE Graded 95 * Stuart Katz

$225.00

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RW70, Mint Superb NH $15 Duck Stamp - PSE Graded 98 * Stuart Katz

$110.00

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RW24, Mint XF NH $2 Duck Stamp - PSE Graded 90 * Stuart Katz

$120.00

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RW13, Mint XF NH $1 Duck Stamp - PSE Graded 90 * Stuart Katz

$90.00

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RW68, Mint Superb NH $15 Duck Stamp - PSE Graded 98 * Stuart Katz

$90.00

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RW45, Mint Superb NH $15 Duck Stamp - PSE Graded 98 * Stuart Katz

$100.00

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RW38, Mint Superb NH $3 Duck Stamp - PSE Graded 98 SMQ $175 * Stuart Katz

$125.00

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RW20, Mint NH $2 Duck Stamp - With PL# * Stuart Katz

$60.00

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396, Used VF 5¢ Scarce Coil Pair * Stuart Katz

$150.00

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RW40, $5 Stellerr's Eider Federal Duck Stamp VF NH - LOW PRICE!

$9.95

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Yogi Berra Baseball Full Sealed Pad of 100 Sheets Scott 5608 - Stuart Katz

$2,050.00

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C20, Mint NH 25¢ Airmail Complete Top PL# Sheet of 50 ** Stuart Katz

$59.95

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1610a, MNH $1 Candle - Brown Color Omitted Error With Normal - Stuart Katz

$111.86

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Day of the Dead Full Sealed Pad of 100 Sheets - Scott 5643a - Stuart Katz

$2,050.00

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1483b, Mint NH 8¢ - Black Color Omitted MAJOR Error With Normal * Stuart Katz

$893.00

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C20, Mint NH 25¢ Airmail Complete Sheet of 50 ** Stuart Katz

$49.95

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508, Mint VF NH 8¢ Plate Block of Six Stamps * Stuart Katz

$175.00

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1891a, Mint NH 18¢ Imperforate PL #5 Strip of Six Stamps Error * Stuart Katz

$131.60

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C20, Mint NH 25¢ Airmail Complete Sheet of 50 ^^Stuart Katz

$49.95

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Ellsworth Kelly Full Sealed Pad of 100 Sheets (2000 Stamps) Scott 5391

$2,295.00

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Harlem Renaissance Full Sealed Pad of 100 Sheets (2000 Stamps) Scott 5474

$2,050.00

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C128a, Mint NH 50¢ Harriet Quimby Imperforate Error Block * Stuart Katz

$1,123.30

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Backyard Games Full Sealed Pad of 100 Sheets (1600 Stamps) Scott 5627-34

$1,450.00

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Raven Story Full Sealed Pad of 100 Sheets (2000 Stamps) Scott 5620

$2,050.00

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C115a, Mint NH 44¢ Airmail Imperforate Error Block * Stuart Katz

$841.30

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3523a, Mint NH 34¢ Lucy Imperforate Error Selvage Pair * Stuart Katz

$559.30

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Love Hearts Full Sealed Pad of 100 Sheets (2000 Stamps) Scott 5543

$2,050.00

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State County Fairs Full Sealed Pad of 100 Sheets (2000 Stamps) Scott 5404a

$2,050.00

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Barns Full Sealed Pad of Postcard Stamps 100 Sheets (2000 Stamps) Scott 5546-9

$1,520.00

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American Gardens Full Sealed Pad of 100 Sheets (2000 Stamps) Scott 5470

$2,050.00

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Ruth Asawa Full Sealed Pad of 100 Sheets (2000 Stamps) Scott 5504-13

$2,050.00

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Coral Reef Sealed Pad of Postcard Stamps 100 Sheets (2000 Stamps) Scott 5366a

$1,595.00

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Tyrannosaurus Rex Full Sealed Pad of 100 Sheets (1600 Stamps) Scott 5413a

$1,450.00

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Vanishing Species Full Sealed Pad of 100 Sheets (2000 Stamps) Scott B4

$2,050.00

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Post Office Murals Full Sealed Pad of 100 Sheets (1000 Stamps) Scott 5376a

$995.00

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Heritage Breeds Animals - Full Pad of 100 Sheets (2000 Stamps) Scott 5583-92

$1,950.00

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Gwen Ifill Full Sealed Pad of 100 Sheets (2000 Stamps) Scott 5432

$2,050.00

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Wedding Hearts Full Sealed Pad of 100 Sheets (2000 Stamps) Scott 5339

$2,050.00

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Wedding Boutonniere Full Sealed Pad of 100 Sheets (2000 Stamps) Scott 5457

$2,050.00

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Mr Rogers Full Sealed Pad of 100 Sheets (2000 Stamps) Scott 5275

$3,295.00

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1771, Mint NH 15¢ Color Shift ERROR - Martin Luther King - Stuart Katz

$18.75

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Walt Disney 6 Cent Postage Stamps - FIFTY STAMPS - Scott 1355

$16.95

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1504 MNH 8¢ - Large Misperforation Error Block of Six * Stuart Katz

$28.20

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2534, MNH 29¢ Savings Bond - Fantastic Color Shift Error - Stuart Katz

$28.15

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