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EFO #E19 Var. 20¢ Special Delivery Overinked Ink Smear

$ 3.51 $ 2.1

US EFO, ERROR Stamps: #2523b Flag Rushmore. Imperf & miscut "EE" coil pair. MNH

$ 11 $ 6.6

EFO #1468 Var. 100th Anniversary of Mail Order 8¢, Two-Tailed Cat MNH

$ 5.27 $ 3.16

UNITED STATES STAMPS WITH LINE VARIETY SMALL LOTE (A2875)

$ 0.88 $ 0.52

nystamps US Error, Freaks, Oddities Stamp Mint OG NH Misperf Error L23x1178

$ 1.1 $ 0.66

2251b, Red & Black Engraved Colors Omitted RARE MAJOR Error APS Cert Stuart Katz

$ 963.6 $ 578.16

US Scott #554 Mint-Hinged With Some Creasing as Well, OFFSET ON SELVAGE ERROR SK

$ 21.99 $ 13.19

EFO #C90 Var. 31¢ Air Mail Plane Globe Horizontal Pair Misperfed Vertical MNH

$ 6.15 $ 3.69

EFO #1479Var. Spirit of Independence 8¢ Green Color Shift MNH

$ 1.75 $ 1.05

EFO #1690 Var. Bicentennial 13¢ Color Shift MNH

$ 1.75 $ 1.05

nystamps US Error, Freaks, Oddities Stamp Mint OG NH Imperf Error L23x1188

$ 2.86 $ 1.71

EFO #1804 Var. 15¢ Benjamin Banneker Stamp Imperf Pair Printers Waste MNH

$ 20.77 $ 12.46

nystamps US Error, Freaks, Oddities Stamp Mint OG NH Misperf Error L23x1186

$ 0.15 $ 0.09

SCOTT 1895j 1981 20 CENT FLAG OVER SUPREME COURT ISSUE IMPERF COIL PAIR MNH OG!

$ 12.32 $ 7.39

US ERROR Stamps: #2115f Flag Capitol. Imperf coil strip of six! MNH

$ 8.79 $ 5.27

* U.S. #1616 .09c PEACEFUL ASSEMBLY MAJOR MISPERF COIL LINE PAIR MNH NICE *

$ 3.51 $ 2.1

EFO #2829-30 Var. 29¢ Garden Flowers Misperfed Pair Used

$ 1.75 $ 1.05

US 6c Postage Due Mint NH Stamp Showing Drastically Misplaced Numeral Error

$ 8.75 $ 5.25

US 10c Space Mariner - 10 Mint NH Stamp With Drastically Misplaced Color Error

$ 8.75 $ 5.25

EFO #1951 Var. LOVE 20¢ Horizontal Pair Horizontal Misperf Through Denomination

$ 2.93 $ 1.75

EFO #1472 Var. 8¢ Night Before Christmas 3 Color Shift Single Stamps MNH

$ 3.51 $ 2.1

1265 Magna Carta-black shift to L, w/normal vf MNH

$ 0.87 $ 0.52

EFO #1582 Var. 2¢ Freedom To Speak Out Gutter Snipe Horizontal Pair MNH

$ 3.9 $ 2.34

EFO #1423 Var. 6¢ America's Wool Vertical Pair Bottom Stamp White Bubbles MNH

$ 1.75 $ 1.05

US EFO, ERROR Stamps: #1549 Retarded Children. Nice Perf shift! MNH

$ 0.87 $ 0.52

C11, HUGE COLOR SHIFT MAJOR ERROR PLATE BLOCK - 5¢ Beacon - Stuart Katz

$ 1315.6 $ 789.35

nystamps US Error, Freaks, Oddities Stamp Mint OG NH Misperf Error L23x1182

$ 0 $ 0

S5/29 US Stamps Scott 2c Plate No. Shown & Heavy Plate Tone Errors UNH EFO Coll

$ 4.26 $ 2.56

US ERROR Stamps: #2913a Flag Porch. Imperf coil strip of six! MNH

$ 8.79 $ 5.27

SCOTT #499 MINT HR 1917 CARMINE WASHINGTON FREAK MISPERF BLOCK -- SEE PHOTOS

$ 16.72 $ 10.03

1995 ATOMIC BOMBS END WWII NON-ISSUED RESCINDED US STAMP MNH VF

$ 2.64 $ 1.58

EFO 1 Cent Green George Washington Vertical Strip Rejection Mark Tape Splice

$ 17.25 $ 10.35

US Candle Holder Mint NH Stamp (x2) Showing Misplaced Flame To Left & Right

$ 8.75 $ 5.25

EFO #1949a Var. Bighorn Sheep 20¢ Block of 4 Vertical Misperf MNH

$ 2.29 $ 1.37

EFO #1475 Var. LOVE 8¢ Color Shift MNH

$ 2.63 $ 1.57

US EFO, ERROR Stamps: #1284 Roosevelt. No inscriptions Perf. shift. MNH

$ 0.87 $ 0.52

R68c for. exch extra rows perfs, f-vf

$ 0.87 $ 0.52

EFO #1204 Dag Hammarskjold 4¢ Color Shift

$ 2.93 $ 1.75

1861 EFO R MARGIN IMPERF 3 CENT Washington US STAMP Scott 64a Fancypen Cancel VF

$ 264 $ 158.4

US EFO, ERROR Stamps: #2280a Flag Yosemite. Striking ink freak, coil pair. MNH

$ 5.72 $ 3.43

1338A vf MNH,1622(u) ink bleed efos, 1338A line pair, vf MNH

$ 0.87 $ 0.52

nystamps US Error, Freaks, Oddities Stamp Mint OG NH Misperf Error L23x1192

$ 0 $ 0

US ERROR Stamps: #2523b Flag Rushmore. Imperf coil strip of six! MNH

$ 8.79 $ 5.27

C87, 18¢ Statue of Liberty HUGE Color Shift ERROR Plate Block - Stuart Katz

$ 259.6 $ 155.76

C11, HUGE COLOR SHIFT MAJOR ERROR - 5¢ Beacon Mint NH - Stuart Katz

$ 523.6 $ 314.16

nystamps US Error, Freaks, Oddities Stamp # 115 Used 5 Misperf Error L23x1148

$ 0.88 $ 0.52

US EFO, ERROR Stamps: Walt Disney. Jumbo & perf shift pair. Block Of 4 MNH

$ 17.55 $ 10.53

1356, Mint Misperfed Complete Sheet of 50 Stamps 6¢ Marquette - Stuart Katz

$ 435.6 $ 261.36

1502, 15¢ HUGE Color Shift Error With Normal Mint NH - Stuart Katz

$ 66 $ 39.6

US #4952a War 1812 Battle of New Orleans Imperf Stamp Sheet MNH

$ 20.23 $ 12.14

US ERROR Stamps: #1895 Flag Court. PS7 #9 w/ very faint blind perfs! MNH

$ 8.79 $ 5.27

2280b - Scarce Imperf Error PNC5 #2 Large Block Tag "Yosemite" Mint NH Cat 5

$ 281.59 $ 168.95

EFO #702 Var. 2¢ Red Cross Selection of 3 with Traveling Red Cross MNH

$ 1.75 $ 1.05

Lot of 10 EFO Misperforated Singles MNH OG VF #1 List of Catalog #'s Below

$ 24.64 $ 14.78

US 13c Sound Recording Mint NH Stamp Showing Drastically Misplaced Color Error

$ 8.75 $ 5.25

EFO #C81 Var. 21¢ Air Mail Black Plane Color Shift and Normal Stamp

$ 1.75 $ 1.05

US ERROR Stamps: #2115f Flag Capitol. Imperf transition PS7 #5 PNC MNH 5.+

$ 439.12 $ 263.47

C85 - 11c Multiple Color Shift Error / EFO "1972 Olympic Skiers" Mint NH

$ 4.65 $ 2.79

US 13c "INTERPHIL" Mint NH Stamp With Drastically Misplaced Color Error

$ 8.75 $ 5.25

C45 - Very Scarce Misperf Error / EFO "The Wright Brothers" Mint NH

$ 19.35 $ 11.61

nystamps US Error, Freaks, Oddities #1895a Mint OG NH Pair Imperf Error L23x1196

$ 0.88 $ 0.52

VOTE MAD Alfred E. Neuman Trump Biden For President Imperforate Between Stamps

$ 6.06 $ 3.63

1965 Florida Settlement Spanish Explorer 5c Stamp #1271 MNH/OG MISPRINTING ERROR

$ 8.58 $ 5.14

US EFO, ERROR Stamps: #1297 Parkman. Miscut coil pair! MNH

$ 0.87 $ 0.52

Scott # 1355a Walt Disney, Ocher Color Omitted, Mint, Never Hinged, V.F.

$ 259.6 $ 155.76

USA, SCOTT # 1489-1498, INCOMPLETE MINT NO GUM SET OF 9 GUTTER POST OFFICE

$ 3.96 $ 2.37

US 1305E dull gum EFO freak perfs MNH coil pair, VF, Retail .00

$ 1.32 $ 0.79

5370 Error- Word “POSTCARD ” is Missing

$ 66 $ 39.6

US 6c John Powell Expedition Mint NH Stamp Color & Perforations Misplaced Error

$ 8.75 $ 5.25

US EFO, ERROR Stamps: #1355 Walt Disney. Bottom margin, freaky Perf. shift! MNH

$ 0.87 $ 0.52

US 13c Farm Houses Mint NH Stamp Showing Drastic Color Misplaced Error

$ 8.75 $ 5.25

US 8c John Sloan Painting Mint NH Stamp With Color Shift & Misperforation Error

$ 8.75 $ 5.25

US 1c Postage Due Mint NH Stamp Showing Drastically Misplaced Numeral Error

$ 8.75 $ 5.25

US 15c Space Viking Mission Mint NH Stamp w/ Drastic Color & Perforations Error

$ 8.75 $ 5.25

S5/26 US Stamps Scott 2c Plate No. Shown On Coil Stamp Error UNH EFO Coll

$ 3.38 $ 2.03

Iwo Jima Marines Raising the Flag Stamp Elevated Paper Error Freak EFO MINT #929

$ 3.51 $ 2.1

4c Abraham Lincoln Assassination Bullet Hole Error Freak Oddity Stamp MNH! #1282

$ 6.75 $ 4.05

EFO #1487 Var. Willa Cather 8¢ Color Shift MNH

$ 1.75 $ 1.05

nystamps US Error, Freaks, Oddities Stamp Mint OG NH Color Error L23x1166

$ 0 $ 0

1610A Inverted Candle Stick Xtra Fine Mint Never Hinged

$ 13640 $ 8184

BEAUTIFUL! US REVENUE R60c THICK PAPER HORIZONTAL STRIP OF 3 VF DIFFICULT! NICE!

$ 17.55 $ 10.53

#2115 22c Flag Over Capitol-Coil Pair, Erie Blue, Mint **ANY 4=FREE SHIPPING**

$ 88 $ 52.8

1500, Mint NH 6¢ HUGE Black COLOR SHIFT ERROR! With Normal Stamp - Stuart Katz

$ 57.2 $ 34.32

1973 Stamp "We Hold These Truths" Jefferson Memorial 10c #1510 PERFORATION ERROR

$ 5.5 $ 3.3

EFO #1349 Var. HOPE 6¢ Yellow Stars Color Shift MNH

$ 2.29 $ 1.37

S5/27 US Stamps Scott 2c Plate No. Shown On Stamp Error UNH Nice EFO Coll

$ 3.38 $ 2.03

S5/30 US Stamps Scott 5c Plate No. Shown On Coil Stamp Error UNH Nice EFO Coll

$ 3.38 $ 2.03

US 13c Bicentennial Mint NH Stamp With Drastically Misplaced Map Error

$ 8.75 $ 5.25

US 15c Alaska National Park Mint NH Stamp Drastically Misplaced Printing Error

$ 8.75 $ 5.25

US EFO, ERROR Stamps: #2889 Black "G". Scarce perf shift! MNH

$ 0.87 $ 0.52

EFO #2280 Var. 25¢ Yosemite Misperfed Strip of 3 MNH

$ 2.2 $ 1.32

EFO #1305E Var. Oliver Wendell Holmes 15¢ Misperfed Pair Change of Design MNH

$ 2.29 $ 1.37

Scott 566 Variety Mint B15 (Liberty) NH/HR OG Preprinting Paper Fold EFO E00

$ 440 $ 264

James Mangan’s Nation of Celestial Space 100mERGS MNH mis-perf error Outer Space

$ 87.12 $ 52.27

EFO #1595 Var. 13¢ Liberty Bell Misperfed Pair MNH

$ 2.29 $ 1.37

USA, SCOTT # 2609, STRIP OF 5 PNC # 4 WITH BOTTOM PART OF NUMBER 4 MISSING ERROR

$ 8.8 $ 5.28

U.S. #1041a Mint NH - 8c Liberty w/Dbl Impression of Red

$ 395.12 $ 237.07

EFO #1625 Var. 13¢ Independence Hall Vertical Pair Horizontal Misperf MNH

$ 2.63 $ 1.57

US Stamp SC#2169b 2c Lyon Sheet of 100 First Row Tagging Omitted Rare

$ 131.12 $ 78.67

1614a MNH 7.7c Saxhorns, precancelation printing FLAW on strip of 4 .

$ 3.51 $ 2.1