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149, Used 7¢ XF GEM With JUMBO Margins Stunning Stamp! - Stuart Katz
$140.00
152, Used 15¢ VF Very Light Cancel Well Centered Cat $210.00 - Stuart Katz
$190.00
1304, Mint NH 5c Pair - RARE MISCUT & MISPERFORATION ERROR - Stuart Katz
$47.00
C81, 21¢ Airmail With Tagging Shift Error Looks Like 2X Impression - Stuart Katz
$70.50
1735, Major Fold Over ERROR Plate Block of Nine 15¢ Stamps MNH - Stuart Katz
$305.50
RW55, Snow Goose Federal Duck Stamp VF OG NH - Stuart Katz
$12.50
1307, RARE Reverse Printing Under Gum ERROR Complete Sheet of 50 - Stuart Katz
$282.00
C57, RARE Misperfed ERROR In Complete Sheet of 50 Stamps - Stuart Katz
$235.00
444, Used 2¢ Washington VF Quality Coil Stamp - Stuart Katz
$30.00
C81, RARE Reverse Printing Under Gum ERROR Plate Block Mint NH - Stuart Katz
$70.50
1238, Blue Color Missing From Stamp ERROR - VERY RARE! Mint NH - Stuart Katz
$705.00
583, MNH 2¢ Perforation 10 Plate Block Of Four Stamps Cat $110.00 -- Stuart Katz
$40.00
566, Mint 15¢ VF NH Liberty Block of Six Stamps Cat $210.00 - Stuart Katz
$75.00
2897, 32¢ Complete Sheet of 100 Stamps Brookman $115.00 - Stuart Katz
$59.95
White House Tea & Coffee Double Sided Advertising Cover - Stuart Katz
$13.00
151, Used 12¢ - Lightly Cancelled Cat $210.00 -- Stuart Katz
$50.00
RK28, $2 Consular Service Revenue Stamp Cat $125.00 - Stuart Katz
$85.00
RK9, 50¢ Consular Service Revenue Stamp Cat $150.00 - Stuart Katz
$85.00
1459a, Mint NH With Reverse Printing Under Gum ERROR WoW - Stuart Katz
$235.00
RW34, Mint XF NH Plate Block Old Squaws Federal Duck Stamp - Stuart Katz
$375.00
1732, 13¢ Misperfed ERROR Plate Block of 10 Stamps Captain Cook MNH Stuart Katz
$136.30
532, Superb NH 2¢ Left Side Plate Block of Six Stamps - Stuart Katz
$500.00
2169, Major Fold Over ERROR Sheet of 100 2¢ Stamps WoW - Stuart Katz
$141.00
RW81A, Canvasback Federal Duck Stamp Self-Adhesive Pane - Stuart Katz
$44.95
702, Red Cross is Shifted Far to the Right Block With Normal - Stuart Katz
$188.00
RW72A, $15 Hooded Manganser DUCK Stamp Self-Adhesive Pane - - Stuart Katz
$32.95
1690, Reverse Printing Under Gum ERROR Plate Block Mint NH - Stuart Katz
$47.00
677, Mint XF NH Plate Block 8¢ Nebraska Cat $550.00 - Stuart Katz
$450.00
117, Used 12¢ Red and Black Color Cancels Cat $270.00 - Stuart Katz
$99.00
RW21, Artist Signed Harvey Sandstrom (deceased) Duck Stamp VF NH - Stuart Katz
$225.00
RW71, $15.00 Redheads Duck Stamp VF NH - Stuart Katz
$24.95
266-67, Mint F/VF NH Type II & III Combination Strip Cat $752.00 -- Stuart Katz
$350.00
2540, $2.90 Priority Mail Misperforation Shift ERROR Plate Block -- Stuart Katz
$282.00
2590, Large Misperforated ERROR $1 Saratoga Plate Block MNH - Stuart Katz
$164.50
RW82A, 2016 Ruddy Duck Stamp Self-Adhesive Pane - Stuart Katz
$64.95
2590, Large Misperforated ERROR $1 Saratoga Plate Block MNH -- Stuart Katz
$164.50
1015, Scarce Misperforated ERROR Block of Six Stamps Mint NH - Stuart Katz
$51.70
4439, MNH VF Sheet $18.30 Bixby Creek Bridge Express Mail Stamps Stuart Katz
$550.00
1934 Color Shift ERROR Zip Block of 4 - 18¢ Frederic Remington - Stuart Katz
$70.50
2201b, Black Color Omitted Booklet of 2 ERROR Panes CV $100 - Stuart Katz
$19.99
1879a, 18¢ Flowers Misperforated ERROR Plate # Block of 16 Stamps - Stuart Katz
$371.30
2566b, Mint NH 29¢ Comedians Color Omitted Booklet Pane ERROR -- Stuart Katz
$305.50
2121b, Mint NH 22¢ Sea Shells Color Omitted Booklet Pane ERROR -- Stuart Katz
$305.50
1477, Large Misperforation Shift ERROR Plate Block of Four Mint NH - Stuart Katz
$70.50
1690, 13¢ Bicentennial Dark Blue Color Shift ERROR PL# Block of 20 Stuart Katz
$235.00
1804, Large Misperforation ERROR PB of 12 Stamps Black Heritage - Stuart Katz
$141.00
496, Mint VF NH 5¢ Coil Line Pair Cat $65.00 - Stuart Katz
$25.00
1767a, Misperforation Shift ERROR Plate Block of 16 Stamps 15¢ Trees Stuart Katz
$376.00
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