United States

1284, Misperforation Error Makes For Nice Change of Design Block/6 - Stuart Katz

$23.45

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1525, Mint NH 10¢ Two Different Perf Shift Freak Errors * Stuart Katz

Custom Sku: SK-30552

$23.45

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1622b, Mint NH 13¢ Imperforate Error PL# Block of 30 CV $4500 - Stuart Katz

Custom Sku: SK-33163

$2,585.00

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1384m Baltimore, MD Inverted Precancel ERROR Sheet! CV $11,250.00 Stuart Katz

Custom Sku: SK-33118

$4,695.30

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241, Mint FVF NH $1 Block - Columbian With PSE Certificate * Stuart Katz

Custom Sku: 37803

$5,995.00

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JQ2, Mint VF NH 2¢ - RARE WIDE TOP Plate Block of Six $4850 - Stuart Katz

Custom Sku: 39417

$1,995.00

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2980b, Imperforate Block of 8 in Transitional Strip VERY RARE ERROR Stuart Katz

Custom Sku: SK-24885

$2,256.00

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1501b, MNH 8¢ Tan & Lilac Colors Omitted Error Plate Block PFC Cert- Stuart Katz

Custom Sku: SK-31806

$2,115.00

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1381a, MNH 6¢ Black Color Omitted Plate Block APS Cert - Stuart Katz

Custom Sku: SK-31776

$1,593.30

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C23, Spectacular Misperf Error Sheet of 50 Airmail Stamps WoW - Stuart Katz

Custom Sku: SK-25136

$2,350.00

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2037a, VERY RARE Imperforate Error Plate Block of 4 - MNH PFC- Stuart Katz

Custom Sku: 36271

$3,755.30

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1430b, VF NH 8¢ Dark & Light Green Omitted RARE Error With PFC Cert Stuart Katz

$2,538.00

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16, Used 10¢ XF Sound Stamp With PFC Certificate - Stuart Katz

Custom Sku: 38101

$1,850.00

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2492h, RARE BOOKLET WITH TWO IMPERFORATE BETWEEN ERROR PAIRS - Stuart Katz

$2,115.00

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292, Mint $1 XF Very Light Hinge Mark With PFC Certificate - Stuart Katz

Custom Sku: 34756

$1,795.00

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1856b, RARE COMPLETE SHEET ERROR VF NH Cat $5,000.00+

$2,815.30

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807b, Mint VLH 3¢ - Imperforate Between Error - SELDOM OFFERED - PSE Stuart Katz

Custom Sku: 38891

$1,410.00

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1471b, Mint NH 8¢ Black Color Omitted Error JUST 10 EXIST PSE Cert * Stuart Katz

Custom Sku: SK-32560

$2,820.00

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599A, Mint VF+ NH Coil Line Strip of Four With PFC Certificate - Stuart Katz

Custom Sku: 34757

$1,795.00

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2949c, Red Color Omitted Pane of 20 MAJOR ERROR - Stuart Katz

Custom Sku: SK-25146

$1,875.30

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318, Mint Hinged 1¢ GENUINE Coil Pair - PFC Certificate - Stuart Katz

Custom Sku: 39391

$6,995.00

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130, Used VF/XF 24¢ Re-issue - With PFC Certificate - Stuart Katz

Custom Sku: 37948

$2,250.00

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3504, Mint NH 34¢ Imperforate Error Plate Block RARE!!! - Stuart Katz

Custom Sku: SK-24539

$1,875.30

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2965d, MNH 32¢ 3 Colors Omitted Major Error Full Sheet PFC Cert - Stuart Katz

Custom Sku: SK-31756

$5,635.30

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595, Mint NH FVF 2¢ RARE Plate Block of Four Stamps SCV $3000 - Stuart Katz

Custom Sku: 34339

$1,750.00

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RX27-46, Unused Set of Distilled Spirits Stamps SCV $5935 - Stuart Katz

Custom Sku: 39308

$3,250.00

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C90, Remarkable Misperfed 31¢ Error Sheet of 50 Airmail Stamps - Stuart Katz

Custom Sku: SK-27325

$2,350.00

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1799a, 1799b, 1799c, Block Contains the 3 Different Imperforates With PFC

Custom Sku: SK-27536

$4,700.00

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2578b, MNH Red & Black Omitted RARE ERROR With PFC (10 Exist) - Stuart Katz

Custom Sku: 36478

$1,739.00

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154, Mint OG 30¢ Very RARE Stamp Cat $7000.00 - Stuart Katz

Custom Sku: SK-21422

$1,695.00

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2967a, MNH 32¢ Marilyn Monroe Complete Imperforate ERROR Pane of 20 Stuart Katz

Custom Sku: 38887

$2,585.00

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2697k, MNH 29¢ RED Color Omitted Major Error (2 Known) PFC Cert - Stuart Katz

Custom Sku: SK-31755

$4,225.30

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2419b, Mint VF NH $2.40 Full Imperforate Space Pane of 20 Stamps - Stuart Katz

Custom Sku: 39313

$2,815.30

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CSA 14a, Deep Orange Mint NH Superb Gem Margin Block of Four - Stuart Katz

Custom Sku: SK-33375

$2,995.00

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2418P, Mint NH 25¢ Imperforate Gutter Block Proof CV $4000.00 * Stuart Katz

Custom Sku: 38745

$2,350.00

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1856d, MNH 14¢ Two Imperforate Between Errors In Full Sheet RARE - Stuart Katz

Custom Sku: SK-29028

$2,115.00

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544, Used 1¢ VF - PFC And Graded 80J JUMBO PSE Certificates - Stuart Katz

Custom Sku: 37954

$5,500.00

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1709b, MNH 13¢ RARE Imperforate Between Plate Block of 12 Stamps - Stuart Katz

Custom Sku: 34513

$2,632.00

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1940b, MNH VF 20¢ RARE Imperforate Between Block Error PFC Cert - Stuart Katz

Custom Sku: 36575

$2,585.00

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396, Mint NH XF/Superb 5¢ Coil Pair - PSE Graded 95J JUMBO Cert - Stuart Katz

Custom Sku: 39395

$1,750.00

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3007d, RARE Imperforate Sheet of 50 Stamps CV $3900++ - Stuart Katz

Custom Sku: SK-25126

$2,115.00

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1455a, MNH 8¢ Yellow Color Omitted Error Complete Sheet With PFC - Stuart Katz

Custom Sku: SK-33244

$7,990.00

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1631b, MNH 13¢ RARE Imperforate PL# Block of 12 Stamps PSE Cert - Stuart Katz

Custom Sku: SK-31816

$2,627.30

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3082a, MNH James Dean Partially Imperforate Error Pane of Twenty - Stuart Katz

Custom Sku: SK-33598

$1,410.00

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3257a, Mint XF NH - Black Litho Color Omitted Error With Normal - Stuart Katz

Custom Sku: 39833

$83.66

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2955a, Mint XF NH Nixon - Red Color Omitted Error Plate Block - Stuart Katz

Custom Sku: 39836

$1,405.30

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2482a, Mint VF NH - Plate Block - Black Litho Color Omitted Error - Stuart Katz

Custom Sku: 39834

$705.00

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2635a, Mint VF NH 29¢ - Black Litho Color Omitted Error With Normal Stuart Katz

Custom Sku: 39831

$423.00

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385, Mint LH/NH 1¢ - Coil Line Pair SCV $400.00 - Stuart Katz

Custom Sku: 39668

$250.00

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115, Used 6¢ - Sound Stamp SCV $225 - Stuart Katz

Custom Sku: 39683

$40.00

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C2, Used XF 16¢- Very Well Centered - Stuart Katz

Custom Sku: 39678

$55.00

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Havana E1, Used XF 10¢- Very Well Centered GEM - Stuart Katz

Custom Sku: 39679

$200.00

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230-31, Mint F/VF NH - Nice Fresh Stamps SCV $63.50 - Stuart Katz

Custom Sku: 39688

$30.00

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E3, Used XF 10¢- Well Centered Fresh Stamp - Stuart Katz

Custom Sku: 39673

$150.00

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117, Used 12¢ - Orange Cancel - Sound Stamp SCV $130+ - Stuart Katz

Custom Sku: 39686

$30.00

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E7, Used XF/Superb 10¢- Well Centered Fresh Stamp - Stuart Katz

Custom Sku: 39675

$95.00

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1469, MNH 8¢ Freaky Orange Color Shifted Well Down Error * Stuart Katz

Custom Sku: SK-29216-A

$21.57

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R51a, Used 30¢ Superb GEM - Foreign Exchange Revenue Stamp - Stuart Katz

Custom Sku: 39038

$250.00

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70b, Used VF Steel Blue Shade - Sound With PFC Certificate - Stuart Katz

Custom Sku: 39055

$650.00

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R136, Used 4¢ XF GEM With Large Jumbo Margins - Stuart Katz

Custom Sku: 39031

$135.00

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R22d, Used 4¢ Silk Paper - VF With PFC Certificate - Stuart Katz

Custom Sku: 39049

$250.00

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E12, Mint XF NH 10¢ Special Delivery Stamp With PL# - Stuart Katz

Custom Sku: 39024

$125.00

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R510, Used $1000 Pair Cut Cancels - Documentary Stamps - Stuart Katz

Custom Sku: 39025

$75.00

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300, Mint NH 1¢ Fold Over Error Makes for Wild Perforations - Stuart Katz

Custom Sku: 39017

$70.50

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26, Mint LH/NH 3¢ VF Block of Four Stamps * Stuart Katz

Custom Sku: 38878

$375.00

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833, Mint NH $2 HUGE Vignette Color Shift Error With Normal * Stuart Katz

Custom Sku: 38795

$465.30

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2428, Mint NH 25¢ Perforation Shift Freak Error * Stuart Katz

Custom Sku: SK-30361-A

$23.45

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908, MNH 1¢ Misperfed Strip of 6 Stamps - EFO ERROR Freak - Stuart Katz

Custom Sku: SK-29177-A

$28.15

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465, Mint LH (5 NH) 4¢ Plate Block of Six SCV $950.00 * Stuart Katz

Custom Sku: 38882

$595.00

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Hawaii R16, Mint XF NH Block of Four Stamps * Stuart Katz

Custom Sku: 38880

$250.00

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1486, Mint NH 8¢ - Diagonal Misperf Error * Stuart Katz

Custom Sku: 38873

$18.75

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O2, Mint NH F/VF 2¢ Official - With PFC Certificate (copy) * Stuart Katz

Custom Sku: 38867

$400.00

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1305, MNH 6¢ Misperf Coil Strip of Four Freak Error * Stuart Katz

Custom Sku: SK-31613

$8.41

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R98a, Used $20 Revenue - XF GEM - Very Nice * Stuart Katz

Custom Sku: 38869

$225.00

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1338, Mint NH 6¢ Misperfed Plate Block of Four Stamps Error * Stuart Katz

Custom Sku: 38544

$37.55

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1735, Mint NH 15¢ Diagonal Misperfed Block of Four Error * Stuart Katz

Custom Sku: 38549

$18.75

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1735, Mint NH 15¢ Diagonal Misperfed Pair Error - Stuart Katz

Custom Sku: 38552

$14.05

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1289, Mint NH 20¢ Misperfed Plate Block of Four Error * Stuart Katz

Custom Sku: 38538

$46.95

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1338, Mint NH 6¢ Two Way Misperfed Block of Four Stamps Error * Stuart Katz

Custom Sku: 38543

$37.55

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803/25, Mint NH Group of Nine Inking Errors - Stuart Katz

Custom Sku: 38556

$46.95

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C78a, Mint NH 11¢ Miscut Error Booklet Pane Shows Markings * Stuart Katz

Custom Sku: 38547

$28.15

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1338, Mint NH 6¢ Group of Six Misperf Shift Errors - Stuart Katz

Custom Sku: 38555

$42.30

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1289, Mint NH 20¢ Misperfed Block of Six Error * Stuart Katz

Custom Sku: 38539

$56.35

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1394, Mint NH 8¢ Plate Block Two Way Perf Shift Error * Stuart Katz

Custom Sku: 37997

$70.50

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1683, MNH 13¢ Plate Block Misperf And Tagging Shift Error * Stuart Katz

Custom Sku: 37996

$70.50

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1289, Mint NH 20¢ Misperforation Error * Stuart Katz

Custom Sku: 37979

$12.17

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R72a, Used $1 Manifest - XF Four Margin GEM * Stuart Katz

Custom Sku: 37993

$45.00

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1487, Mint NH 8¢ Pair Double Perforations Misperfed Error * Stuart Katz

Custom Sku: 37992

$70.50

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2014, Mint NH 20¢ Large Black Color Shift Error * Stuart Katz

Custom Sku: 37988

$56.35

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1608a, Mint NH 50¢ Black Color Omitted Error * Stuart Katz

Custom Sku: 37976

$352.50

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1608, Mint NH 50¢ Black Color Shift Error * Stuart Katz

Custom Sku: 37835

$42.30

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1096 Var, Mint NH 8¢ Partial Reverse Printing Under Gum Error * Stuart Katz

Custom Sku: 37849

$23.45

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1608a, Mint NH 50¢ Black Color Omitted Error With Normal * Stuart Katz

Custom Sku: 37839

$352.50

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584, Mint VF NH 3¢ Plate Block of Four * Stuart Katz

Custom Sku: 37846

$375.00

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1556 Var, MNH 10¢ PB - Partial Reverse Printing Under Gum Error - Stuart Katz

Custom Sku: 37860

$211.50

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1338 Var, MNH 6¢ Plate Block Full Reverse Printing Under Gum Error * Stuart Katz

Custom Sku: 37850

$47.00

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