United States

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2238c, Mint NH 22¢ - Black Color Omitted Error Block SCV $275 - Stuart Katz
39935
$177.66
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O36a, Dull Blue - Mint LH 2¢ Navy - With PFC Cert - SCV $200 - Stuart Katz
40348
$125.00
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3066a, Mint NH 50¢ - Black Color Omitted Error Plate Block ** Stuart Katz
39933
$164.50
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1556a, MNH XF 10¢ - Red & Dark Yellow Colors Omitted Error Stuart Katz
40529
$799.00
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1467c, MNH 8¢ - Green & Blue Colors Omitted Error - Stuart Katz
40546
$1,781.30
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1395e, MNH 8¢ - Vertical Pair Imperforate Between Error - Stuart Katz
40545
$611.00
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292, Mint VF NH $1 - Scarce Stamp! With PFC Certificate - Stuart Katz
40520
$3,000.00
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C20, MNH 25¢ Airmail Top PL# Sheet of 50 With "C" At Top Right Stuart Katz
40430
$69.95
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196, Unused F/VF 7¢ RARE Re-Issue With PFC Certificate SCV $6750 - Stuart Katz
40519
$5,500.00
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915a VF NH Blue & Red Over Black Reverse Printing Error W/Normal * Stuart Katz
39964
$18.75
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2280, Mint NH 25¢ - Red Color Shift Strip of 8 Stamps - Stuart Katz
40145
$37.60
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408, MNH 1¢ With Kansas City Private Perfs Imperforate Between Var. Stuart Katz
40301
$235.00
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RW46, Mint NH - Dramatic RARE Color Shift Error On Duck Stamp - Stuart Katz
39977
$117.50
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1610, MNH $1 Candle Block - LARGE Misperforation Error - Stuart Katz
40297
$37.60
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2453a, Mint FVF NH 5¢ Imperforate Coil Pair Error - Stuart Katz
34744
$112.80
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3054, Mint NH 32¢ - Misperforated Error Strip of 8 Stamps - Stuart Katz
40141
$18.75
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1826a, MNH VF 18¢ - Red, Brn & Blue Colors Omitted Error APS Cert - Stuart Katz
40241
$423.00
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2031a, MNH VF 20¢ - Black Color Omitted Error With Normal - Stuart Katz
40242
$611.00
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650, Mint Superb NH 5¢ - Graded 98 PSE Certificate - Stuart Katz
40248
$115.00
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687, Mint XF/Superb NH 4¢ Line Pair - Graded 95J JUMBO PSE Cert - Stuart Katz
40249
$300.00
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252, Mint VF/XF NH 2¢ - With PFC Certificate - RARE - Stuart Katz
40246
$800.00
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347, Mint Superb NH 5¢ - Graded 100 GEM - PSE Cert - Stuart Katz
40250
$450.00
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1470b, Mint VF NH 8¢ - Red & Black Colors Omitted Plate Block PFC - Stuart Katz
40244
$2,350.00
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2041, MNH 20¢ Brooklyn Bridge - Misperf Error Margin Pair - Stuart Katz
40206
$47.00
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320b, Mint Superb Scarlet Shade PSE Graded 100J JUMBO Certificate - Stuart Katz
40191
$595.00
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525, Mint NH (Left Two H) Misperfed Error Block of Six - Stuart Katz
40202
$55.46
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484, Mint Superb NH Pair - Stuart Katz
40200
$50.00
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1033a, Mint VF NH 2¢ Silkote Paper - PSE Certificate - Stuart Katz
40193
$225.00
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183, Mint XF VLH 2¢ JUMBO - Stunning Stamp With PFC Certificate - Stuart Katz
SK-33738
$350.00
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2354b, Mint NH 22¢ - White Color Omitted Error Zip Block ** Stuart Katz
39930
$235.00
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RW46, Mint NH $7.50 Duck - RARE Color Shift Error Plate Block * Stuart Katz
40236
$611.00
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508, Mint VLH 8¢ VF - Plate Block of Six * Stuart Katz
40234
$120.00
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2115f, MNH VF 22¢ - Imperforate PL# 12 Strip of 6 Error * Stuart Katz
40229
$235.00
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2130b, MNH VF 10.1¢ - Imperforate PL# 1 Strip of 8 Error * Stuart Katz
40228
$329.00
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553, Mint VF NH - Wide Top Plate Block - Well Centered - Stuart Katz
40034
$50.00
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2354b, Mint NH 22¢ - White Color Omitted Error Zip Block * Stuart Katz
39930
$235.00
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562, Mint VF/XF NH 10¢ - Plate Block - Well Centered - Stuart Katz
40033
$325.00
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1622, MNH 13¢ Contaminated Ink Error In Pair - Stuart Katz
SK-33103
$23.45
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1683, Mint NH 13¢ Two Different Perf Shift Freak Errors - Stuart Katz
SK-30535
$23.45
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1596, MNH 13¢ Gutter Snipe Freak Error Strip of 10 Stamps - Stuart Katz
SK-29486
$23.45
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2402, Mint NH Nice Color Shift Error With Normal Stamp - Stuart Katz
SK-23116
$23.45
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1858, MNH 18¢ Large Misperfed Shift Freaky Error Pair * Stuart Katz
SK-31565
$23.45
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504, Mint VF NH 5¢ With Odd Inking Freak Error - Stuart Katz
SK-33387
$23.45
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2072, MNH 20¢ Large Misperfed Shift Freaky Error Pair * Stuart Katz
SK-31571
$23.45
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C78a, Mint NH 11¢ Miscut Error Booklet Pane Shows Markings * Stuart Katz
38547
$23.45
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982, MNH 3¢ Misperf Shift Freak Error Washington And Lee - Stuart Katz
SK-29658
$23.45
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1373, Scarce Misperf Freak Error Margin Copy Mint NH 6¢ California * Stuart Katz
SK-30307
$23.39
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1525, Mint NH 10¢ Misperfed Error VFW Anniversary - Stuart Katz
SK-26039
$23.45
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2045, Mint NH 20¢ Blue Color Shift Error With Normal * Stuart Katz
38604
$23.45
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1283b, MNH (gum skips) 5¢ Misperf Shift Freaky Error Plate Block - Stuart Katz
SK-29728
$23.45
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2074, 20¢ Hard to Find Misperfed Error Stamp Mint NH - Stuart Katz
SK-27420
$23.45
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1373, Scarce Misperf Freak Error Mint NH 6¢ California * Stuart Katz
SK-30308
$23.39
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1735, MNH 15¢ Large Perforation Shift Error Pair With Gutter - Stuart Katz
SK-27964
$23.45
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986, MNH 3¢ Heavy Over Inking Stamp EFO ERROR Freak - Stuart Katz
SK-29170
$23.45
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C78, MNH 11¢ Misperforated Freak Error Top Row Pair - Airmail * Stuart Katz
SK-33068
$23.45
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702, Red Cross Shifted In All Four Positions Mint NH -- Stuart Katz
SK-23120
$23.45
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908, MNH 1¢ Misperfed Strip of 6 Stamps - EFO ERROR Freak - Stuart Katz
SK-29177-A
$23.45
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1150, Misperforated Error 4¢ Water Conservation Stamp Mint NH - Stuart Katz
SK-25738
$23.45
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2154, Mint NH 22¢ Misperforation Error WWI With Normal - Stuart Katz
SK-28277
$18.79
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2087, Mint NH 20¢ Large Misperforation Error - Stuart Katz
37906
$23.45
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1526, Mint NH 10¢ Misperfed Error Stamp With Snipe * Stuart Katz
SK-33309
$23.45
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1705, Large Color Shift Major Error With Normal Stamp Mint NH - Stuart Katz
SK-25020
$23.45
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1863 Var, Miscut Error Strip of 3 Almost an Imperf Pair Mint NH - Stuart Katz
SK-27400
$23.45
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2890, MNH 32¢ PL# A1112 Misperf Strip of Five Freak Error * Stuart Katz
SK-31611
$23.45
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1408, 6¢ Large Misperf Error Mint NH Stone Mountain - Stuart Katz
SK-27638
$23.45
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1284, Mint NH 6¢ Misperfed Error Block of 6 Stamps * Stuart Katz
SK-33314
$23.45
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1935, Mint NH 18¢ Misperf Shift Block Freak Error * Stuart Katz
SK-30398
$23.45
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1711, Mint NH Fantastic Misperf Error 13¢ Colorado - Stuart Katz
SK-25098
$23.45
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2635, Mint NH 29¢ Denomination Color Shifted Up Freak Error * Stuart Katz
SK-30253
$18.79
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1936 Color Shift ERROR pair - 20¢ James Hoban - Mint NH - Stuart Katz
$23.45
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1632, Mint NH 13¢ HUGE Color Shift Error * Stuart Katz
38903
$18.79
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1392, Mint NH 6¢ Nice Misperforated Error Freak Block * Stuart Katz
SK-31180
$23.45
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2453, Mint NH 5¢ Misperforation Error Coil Strip of Five * Stuart Katz
35708
$18.79
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1594, Mint NH 12¢ Drastic Misperf Error Pair - Stuart Katz
SK-31104
$23.45
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1419, UNITED NATIONS RARE COLOR SHIFT ERROR
$20.64
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1271, Mint NH 5¢ MAJOR BLACK COLOR SHIFT ERROR Stuart Katz
$23.39
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1578a, Mint NH 10¢ Perforation Shift Zip Block of Four Freak Error * Stuart Katz
SK-30447
$23.45
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2141a, MNH 22¢ Decoys Misperfed Block of 16 Stamps Freaky Error - Stuart Katz
SK-29410
$23.45
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1744, Mint NH 13¢ Large Color Shift Error Harriet Tubman W/Normal - Stuart Katz
SK-21807-A
$23.45
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1290, 25¢ Scarce Misperfed Error Pair Frederick Douglas Mint NH - Stuart Katz
SK-27445
$23.45
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1280, Mint NH 2¢ Misperfed Error Plate Block of Four - Stuart Katz
SK-28188
$23.45
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1340, MNH 6¢ White Color Shift Freak Error With Normal * Stuart Katz
SK-30566
$23.45
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1164, MNH 4¢ - Perfs Shifted Freaky Error With Normal * Stuart Katz
SK-31502
$23.45
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1036, Mint NH 4¢ Pair - Dramatic Misperforation Error - Stuart Katz
38519
$23.45
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1436, Perf Shift Freak Error Block Mint NH 8¢ Emily Dickinson * Stuart Katz
SK-30346
$23.39
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1035a, Mint LH 3¢ Massive Miscut Error Booklet Pane - Stuart Katz
35129
$23.45
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1823, Mint NH 15¢ Large Perf Shift Error - Emily Bissell - Stuart Katz
SK-28099
$23.45
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1284 Misperforation Error Makes For Nice Change of Design Block/6 - Stuart Katz
$23.45
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2082, Mint NH 20¢ Margin Misperforation Error * Stuart Katz
38190
$18.79
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702, Red Cross Shifted In All Four Positions Mint NH -**- Stuart Katz
SK-23122
$23.45
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982, Mint NH 3¢ Misperforated Error Washington/Lee With Normal - Stuart Katz
SK-22909
$23.45
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2443, MNH 15¢ Double Seagulls Color Shift Error Pair W/Normal - Stuart Katz
SK-33409
$23.45
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1470, Mint NH 8¢ - Color Shift Error Block of Six - Stuart Katz
39954
$18.79
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1432, Mint NH Color Shift Error 8¢ Bicentennial Stamp - Stuart Katz
SK-25343
$23.45
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1115, MNH 4¢ Misperf Shift Freak Error Lincoln-Douglas Debate - Stuart Katz
36101
$23.45
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1505, Mint VF NH 10¢ Black Color Shifted to the Left Error - Stuart Katz
SK-29825
$23.45
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