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1557a Red Star Omitted MAJOR ERROR - Mariner 10 - Mint VF NH - Stuart Katz
SK-33251
$141.00
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1142, MNH 4¢ Sensational Perf Shift Error Block of Four -- Stuart Katz
SK-33585
$70.50
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C22, Mint XF/Superb NH 50¢ Airmail Stamp *A GEM* Stuart Katz
SK-33389
$19.95
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2279a, MNH 25¢ Imperforate PL# 1111 Strip of Five - Stuart Katz
SK-33550
$277.30
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2279a, MNH 25¢ Imperforate PL# 1111 Strip of Six - Stuart Katz
SK-33549
$305.50
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Spicebush Swallowtail Butterfly ONE PACK OF TEN 66 Cent Stamps Scott 4736
SK-31015
$22.95
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Winter Fun ATM Pane of 18 1st Class Postage Stamps Scott 4944b
SK-28118
$75.00
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1294, $1 Eugene O'Neill Complete Fresh Sheet of 100 Stamps - Stuart Katz
SK-07908
$175.00
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1845, Mint NH 2¢ Perf Shift Error Sheet of 100 Stamps - Stuart Katz
SK-33192
$140.06
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William Edward Burghardt Du Bois Sheet of Fifty 29 Cent Stamps Scott 2617
2617
$24.95
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1757a, Mint NH 13¢ Tremendous Misperf Error Complete Sheet - Stuart Katz
SK-33195
$841.30
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1594, Mint NH 12¢ Perf Shift Error Pair of Stamps - Stuart Katz
SK-33184
$23.45
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1594, Mint NH 12¢ Perf Shift Error Plate Block of Six Stamps -- Stuart Katz
SK-33181
$93.06
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1474, Mint NH 8¢ Pre Print Paper Fold & Color Shift Error Block - Stuart Katz
SK-33145
$164.50
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J90, MNH 2¢ Shifted Right Error In Full Sheet of 100 Stamps - Stuart Katz
SK-33187
$559.30
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1461, Mint NH 8¢ Green Ink Smear Error in Plate Block of 20 - Stuart Katz
SK-33144
$46.95
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1474, Mint NH 8¢ Color Shift Freak Error Sheet of 40 - Stuart Katz
SK-33146
$1,499.30
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2169 Var, Mint NH 2¢ - Extreme Dry Printing Full Sheet Error - Stuart Katz
SK-33132
$470.00
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917a, MNH 5¢ Reverse Printing of Flag Colors Sheet With PF Cert - Stuart Katz
SK-33134
$935.30
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1467a, Mint NH 8¢ Nice Color Shift Freak Error Plate Block - Stuart Katz
SK-33142
$46.95
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1433, Mint NH 8¢ MASSIVE Color Shift Freak Error Block of Six - Stuart Katz
SK-33150
$465.30
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1537a, Mint NH 10¢ VERY RARE Perf Shift Freak Error PL# Block of 16 Stuart Katz
SK-33162
$329.00
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1470, Mint NH 8¢ Small Color Shift Freak Error Sheet of 50 - Stuart Katz
SK-33143
$93.06
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1484a, Mint NH 8¢ Imperforate Between Error Pair - Stuart Katz
SK-33141
$117.50
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1094, MNH 4¢ Wide Pre Printing Paper Fold Error Block - WoW - Stuart Katz
SK-33116
$282.00
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1140, MNH 4¢ Misperforated Freak Error Complete Sheet of 50 - Stuart Katz
SK-33113
$653.30
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1715a, MNH 13¢ Large Color Shift Freak Error Block of Six * Stuart Katz
SK-33102
$117.50
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1381, Mint NH 6¢ Black Color Shift Freak Error BASEBALL * Stuart Katz
SK-30509
$14.10
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1562, Gutter Snipe Error Block of Ten 18¢ Stamps Mint NH - Stuart Katz
SK-24864
$18.75
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1560, MNH 10¢ Back Inscription Shifted Freak Error - Stuart Katz
SK-29405
$37.55
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1408, Perf Shift Freaky Error Mint NH 6¢ Stone Mountain Stamp * Stuart Katz
SK-30074
$18.75
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C39, Mint 6¢ NH Scarce Misperforated Error Pair - Stuart Katz
$18.75
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1582, MNH 2¢ Misperforation Shift Freak Error Block of 8 -- Stuart Katz
SK-29455
$14.99
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2052, Mint NH 20¢ Large Misperforation Shift Freaky Error - Stuart Katz
SK-29713
$18.75
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1726, Mint 13¢ Misperforated Margin Stamp With Normal - Stuart Katz
SK-21139
$18.75
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1197, Mint NH 4¢ Freaky Error Misperfed - Louisiana at Top - Stuart Katz
SK-30032
$17.81
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1845, Perf Shift Freak Error Pair Mint NH 2¢ Stravinsky * Stuart Katz
SK-30343
$18.69
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1699, Mint NH 13¢ Perfs Shifted Freak Error Clara Barton * Stuart Katz
SK-30242
$18.79
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1356, Mint LH 6¢ Large Color Shift Major Error - Stuart Katz
SK-24996
$18.75
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1179, Mint NH 4¢ Terrific Misperfed Civil War With Normal Stamp - Stuart Katz
SK-28083
$18.75
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2052, Mint NH 20¢ Dramatic Misperf Shift Error -*- Stuart Katz
SK-25072
$16.45
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1479, Mint NH 8¢ Green Color Shifted Freak Error Pair * Stuart Katz
SK-30215
$9.40
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1444, Color Shifted to Right ERROR - 8¢ Christmas Stamp - Mint NH - Stuart Katz
SK-05419
$14.10
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1731, Mint NH 13¢ Misperfed Shifted Down Freak Error - Stuart Katz
SK-29488
$18.75
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658-68, Mint LH/H Complete Set of 11 Kans Overprints ** Stuart Katz
SK-33259
$99.00
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1938a, RARE Misperforated Sheet of Fifty Error Stamps W/Markings - Stuart Katz
SK-23112
$1,175.00
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669-79, Mint LH/H Complete Set of 11 Nebraska Overprints * Stuart Katz
SK-33261
$125.00
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C23, RARE Misperforated Complete Sheet of Fifty Error Stamps WoW - Stuart Katz
SK-23111
$1,875.30
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1610, Mint NH $1 Color Shift Error Complete Sheet of 100 Stamp - Stuart Katz
SK-33248
$1,880.00
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2414, MNH 25¢ Gold Color Shifted Way Down In Complete Sheet Error - Stuart Katz
SK-33246
$935.30
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1904, 1904a MNH 10.9¢ PL# 1-2 In Strips of Five CV $48 * Stuart Katz
SK-32885
$65.00
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1926, Mint NH 18¢ MASSIVE Color Shift Error Complete Sheet - Stuart Katz
SK-33243
$1,410.00
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1003, Mint NH 3¢ Misperforated Freak Error Block Of Four * Stuart Katz
SK-33012
$74.26
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529, Mint NH 3¢ Plate Block of Six Stamps - Stuart Katz
SK-32905
$85.00
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1908, MNH 20¢ PL# - Wholesale Group of 18 Strips of 3 CV $225 * Stuart Katz
SK-32892
$99.00
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1908, MNH 20¢ PL# 7,8 & 11 In Strips of 3 CV $49 * Stuart Katz
SK-32888
$29.95
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970, Mint NH 3¢ Misperforated Freak Error Block Of Four * Stuart Katz
SK-33013
$74.26
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657, Mint NH 2¢ VF Plate Block of Six * Stuart Katz
SK-33037
$19.99
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719, Mint NH 5¢ Superb Plate Block of Four - Stuart Katz
SK-33030
$22.95
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644, Mint NH 2¢ VF Plate Block of Six -- Stuart Katz
SK-33035
$29.00
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2818a, Mint NH 29¢ RARE Double Impression Error * Stuart Katz
SK-32989
$705.00
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1288, Mint NH 15¢ Misperforated Freak Error Block of Eight * Stuart Katz
SK-33009
$75.20
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1841a, Mint NH 15¢ Red Missing From Top Stamps Error * Stuart Katz
SK-33007
$329.00
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1901, MNH 5.9¢ PL# 3-4 In Strips of Five CV $35 * Stuart Katz
SK-32887
$19.99
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719, Mint NH 5¢ Superb Plate Block of Four * Stuart Katz
SK-33028
$22.95
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1847, MNH 4¢ Misperforated Freak Errors TWO BLOCKS * Stuart Katz
SK-33022
$18.79
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719, Mint NH 5¢ Superb Plate Block of Four ** Stuart Katz
SK-33029
$22.95
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657, Mint NH 2¢ VF Plate Block of Six ** Stuart Katz
SK-33038
$19.99
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1908, MNH 20¢ PL# 2 In Strip of 3 CV $90 * Stuart Katz
SK-32889
$39.95
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279Bg, Mint 2¢ "Pink" Strips of 3 CV $2,240.00 * Stuart Katz
SK-32893
$695.00
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1907, MNH 18¢ PL# 3-4 In Strips of Four CV $35 * Stuart Katz
SK-32886
$19.99
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C81, Mint NH 21¢ Airmail Color Shift Freak Error - Stuart Katz
SK-33209
$15.93
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1369, MNH 6¢ Big & Small Stamps Error Plate Block of Four Stamps - Stuart Katz
SK-33203
$23.50
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3835, MNH 37¢ Misperforated Error Block of 10 Dr. Seuss Stamps - Stuart Katz
SK-33200
$141.00
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1474, MNH 8¢ BIG Color Shift Error Zip Block of Four Stamps - Stuart Katz
SK-33202
$211.50
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1435a, MNH 8¢ Black & Yellow Colors Shifted Up Plate Block Error - Stuart Katz
SK-33221
$140.06
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1571, MNH 10¢ Misperforated Error Zip Block of Six Stamps - Stuart Katz
SK-33201
$56.40
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1549, Mint NH 10¢ Large Perf Shift Block Error With Normal - Stuart Katz
SK-33217
$37.60
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3835, MNH 37¢ Misperforated Error Block of 12 Dr. Seuss Stamps - Stuart Katz
SK-33212
$140.06
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238, Used 15¢ Columbian Lightly Cancelled With PFC Cert Graded 90 - Stuart Katz
SK-33223
$250.00
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3082a, Mint XF NH 32¢ James Dean Imperforate Plate Block Error - Stuart Katz
SK-33228
$164.50
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1362a, MNH 6¢ Ducks Imperforate Between Error Pair -- Stuart Katz
SK-31784
$211.50
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409, Mint VF NH 2¢ Block of Six Printed With Analine Ink RARE! - Stuart Katz
SK-31704
$75.00
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1867a, Mint VF NH 39¢ Imperforate Between Zip Block - Stuart Katz
SK-32760
$517.00
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1919 Unused War Savings Certificate For WS4 Stamps * RARE! * Stuart Katz
SK-31317
$349.00
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2440, MNH 25¢ LOVE Misperforated Freaky Error Block of Six * Stuart Katz
SK-31575
$158.86
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542, MNH 2¢ Margin Block Misperf Shift Error Freak -- Stuart Katz
SK-31681
$70.50
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1918 Unused War Savings Certificate For WS2-3 Stamps * RARE! * Stuart Katz
SK-31313
$375.00
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1504a, Mint VF NH 8¢ Green & Red Brown Omitted Error PSE Cert - Stuart Katz
SK-32598
$446.50
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1547c, Mint VF NH 10¢ Green Color Omitted Error With APS Cert - Stuart Katz
SK-32596
$376.00
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2210b, Mint VF NH 22¢ Imperforate Error With PSE Cert - Stuart Katz
SK-32610
$611.00
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3557a, Mint VF NH 34¢ Imperforate Error With PSE Cert - Stuart Katz
SK-32600
$540.50
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J94, Mint NH 6¢ RARE Dull Gum Sheet of 100 CV $7970.00 - Stuart Katz
SK-32593
$2,500.00
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Love Wedding Sheet 20 Current Rate Postage Stamps Scott 5543
SK-32939
$19.42
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2444a, Mint VF NH 25¢ Black Color Omitted Error With PSAG Cert - Stuart Katz
SK-32602
$653.30
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Winter Scenes Booklet Pane of 20 First Class Stamps Scott 5541a - Stuart Katz
SK-32943
$27.79
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