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3263 $.22 Uncle Sam miss perf miss cut Newley Discovered

$ 440 $ 264

Scott 805b Washington Imperf Between ERROR Mint Pair in Block of 6 Stamps NH

$ 61.59 $ 36.95

US, 1945 Christmas Seal, Single, Green's 45-1.1 Error, Black/Red Only, MNH

$ 18.99 $ 11.39

EXTREMELY RARE Wisconsin Salmon & Trout Stamp Block 1992 Error

$ 396 $ 237.6

2721 Var ELVIS PRESLEY MAJOR COLOR SHIFT ERROR BLOCK HV8564A

$ 875.6 $ 525.36

US. 3265a. (33c) Uncle Sam's Hat. Die Cutting Omitted, Pair of 2. MNH. 1998

$ 42.03 $ 25.22

Scott 1409, 6c Fort Snelling, 3 different RED COLOR SHIFTs, used, EFO

$ 3.51 $ 2.1

R1/57 US stamps Scott ? 10c Per Shift Jumbo Error UNH Nice Coll

$ 6.02 $ 3.61

MNH GUTTER SNIPE Block of 4, Scott #1290 25c Douglass/ Pane MIscut Horizontally

$ 42.24 $ 25.34

#C86 VAR. "ELECTRONICS" PLATE # BLOCK OF 4 MAJOR COLOR SHIFT ERROR BS7766

$ 286 $ 171.6

#2235-38 Navajo Art full sheet of 50 MNH perf. shift toning little soft wrinkle

$ 350.24 $ 210.14

EFO 2201b (x2) BOTH ERROR BOOKLET PANES MISSING BLACK INK COMPLETE BOOKLET

$ 88 $ 52.8

TD108 Scarce Carmine Test / Dummy Tagged Line Pair Unused Cat ??? "READ"

$ 1583.99 $ 950.39

EFO 702 FDC WITH THE RED CROSS SHIFTED TO UPPER LEFT CORNER.

$ 22 $ 13.2

US # 136 (1870) 3c,Used - Grade:G, EFO: Split Grill w/3 pts {Very Scarce - Rare}

$ 7920 $ 4752

USA 1968 EFO … Oliver Wendell Holmes Sc.1288  - MISPERF  -  strip of 3  - MNH

$ 3.74 $ 2.24

U646a ENTIRE BLUE GRAY COLORS OMITTED ERROR - Stuart Katz

$ 79.15 $ 47.49

EFO 831 BLOCK OF 8 WITH HORIZONAL MISPERF --SCARCE HIGH-VALUE 50c PREXY!

$ 140.8 $ 84.48

U.S. EFO'S 2492h Mint (ID # 77800)

$ 836 $ 501.6

548 - Beautiful Reverse Offset Error / EFO Image "Pilgrim Tercentenary" MLH

$ 13.19 $ 7.91

1610a, Mint VF NH Brown Engraved Color Omitted Error W/Normal - Stuart Katz

$ 131.95 $ 79.17

2427b, XF NH 25¢ With Red Litho Color Omitted MAJOR ERROR - Stuart Katz

$ 330 $ 198

JQ1- 1c Parcel Post Reverse Offset Error / EFO Used

$ 14.77 $ 8.86

1452, Mint 6¢ Plate Block With A HUGE Color Shift Error - WoW - Stuart Katz

$ 219.12 $ 131.47

S5/33 US Stamps Scott 8c Plate No. Shown On Coil Stamp Error UNH Nice EFO Coll

$ 3.38 $ 2.03

S5/35 US Stamps Scott Perf Shift Error UNH Nice EFO Coll

$ 3.38 $ 2.03

USA, SCOTT # 1304, USED UNCANCELLED COIL WASHINGTON WITH PART PLATE NUMBER SHOWN

$ 1.98 $ 1.18

NobleSpirit {YH} Rare Unissued "Yellow Hat" H Postcard Rate Blk of 12 ,500 CV

$ 15180 $ 9108

EFO 1511 MISPERFED SINGLE

$ 15.4 $ 9.24

#1382 VAR. 6c "FOOTBALL" PLATE BLOCK MAJOR COLOR SHIFT ERROR BU4767

$ 181.72 $ 109.03

#2523b 29c Flag Over Rushmore EFO Imperforated Pair MNH OG VF "Incs New Mount"

$ 12.32 $ 7.39

EFO 1557 MASSIVE COLOR SHIFT -- A CLASSIC BEAUTIFUL MESS! --"0" cent RATE!

$ 83.6 $ 50.16

US, 1917 Christmas Seal, Scott WX19, Plate C, Offset Yellow Sizing, MNH, No Gum

$ 5.79 $ 3.47

EFO 1111 UR PLATE BLOCK4 WITH SO CALLED "MISSING WREATHS" ABOVE RIBBONS

$ 132 $ 79.2

EFO 1413 BLACK INK MISSING CREATES "SI" INSTEAD OF "SIX CENTS" --NO CENTS!

$ 17.6 $ 10.56

1991 TULIP F-rate BK183 Sc 2519a (2) plate # 2222 Dramatic Mis-Cut

$ 28.02 $ 16.81

2967. Huge Color Shift Major ERROR - Marilyn Monroe - Stuart Katz

$ 176 $ 105.6

US Stamps: #530a EFO; 3c Type IV Offset Wash/Franklin; Double Impression; Used

$ 175.99 $ 105.59

EFO 1618a (dull gum var) BROKEN "13" INK STARVATION ALL THREE STAMPS

$ 8.8 $ 5.28

APC / CVP / ATM #CVP108 Full Sheet of 10 USPS Eagle Overprint ERRORS, Flag stamp

$ 30.75 $ 18.45

#1473b "PHARMACY" BLUE COLOR OMITTED MAJOR ERROR XF NH W PFC EXT RARE garyposner

$ 935 $ 561

US Scott #1338FG USED coil triple, as shown

$ 0.88 $ 0.52

US 1610c (1975) - MNH EFO: Brown Inverted (CIA Invert) Scarce/Rare

$ 528000 $ 316800

1991 District of Columbia Bicentennial Engraved Omitted Error Stamp in Folio SC

$ 70.35 $ 42.21

CE2 MNH 1936 16c AMSD Block of 4 Signed by Picture Engraver, Designer & Letter

$ 88 $ 52.8

1972 Peace Corps US 8c Stamp #1447 MNH/OG PRINTING ERROR

$ 6.11 $ 3.66

1980 Summer Olympics Decathlon Javelin Color Frame Shift Errors EFO Stamp #1790

$ 4.39 $ 2.63

C76 10 cent Moon Landing issue Color Shift.

$ 11.39 $ 6.83

5052a, Scarce Die Cutting Omitted ERROR Pair Flag Forever Stamps - Stuart Katz

$ 132 $ 79.2

USA APC/CVP/ATM - #CVP91b ERROR stamp used on USPS Form3817 (#297) rate change

$ 17.51 $ 10.5

EFO 1369 TOP PERF ROW SHIFTED UP TO CREATE A JUMBO TOP MARGIN STAMP

$ 17.6 $ 10.56

#1340 VAR MAJOR PERF SHIFT ERROR PLATE # BLK (2) W/ HEMISFAIR 68 (2) W/O BU4101

$ 154 $ 92.4

EFO 1075 HEAVY RED OVERINKING REJECTED BY PO INSPECTOR'S BLUE MARK --SCARCE

$ 79.2 $ 47.52

EFO 651 BLACK VIGNETTE COLOR SHIFTED TO LOWER-LEFT CORNER - PLATE BLK OF SIX

$ 57.2 $ 34.32

R1/60 US stamps Scott ? 20c Red Roof Line Ink Error Used O/P Nice Coll

$ 6.02 $ 3.61

EFO 1570 GUTTER SHIFTED 90% TO THE LEFT INTO STAMP. DRAMATIC AND RARE CHRISTMAS

$ 66 $ 39.6

1542 10 Cent Kentucky Settlement."Tall Trees" Color Shift

$ 8.75 $ 5.25

Paper Join Freak, US Scott #686, Mint NH

$ 2.63 $ 1.57

EFO 113 DIAGONAL PRE PRINTING PAPERFOLD THRU DESIGN EXPOSED AFTER CANCELLED

$ 57.2 $ 34.32

US,916A,916,MNH VF, GREECE,SCARCE DARK BLUE OVER LIGHT BLUE,1943

$ 13.59 $ 8.15

US 2142 22c WINTER OLYMPIC FULL SHEET OF 50 AT FACE MNH with Stamp #19 error

$ 9.68 $ 5.8

4133a (41c) American Flag Die-cut Omitted Error Pair CV 1,250.00 # 2

$ 439.95 $ 263.97

US, 1919 Santa Christmas Seal Block, Thick Paper, Scott WX24b, MNH, No Gum

$ 5.79 $ 3.47

3281b Mint VF NH 33¢ Blue & Yellow Colors Omitted Error With Normal Stuart Katz

$ 259.6 $ 155.76

US Scott 220 EFO "Cap On Right 2"

$ 4400 $ 2640

1972 Christmas Santa Claus 8c US Stamp #1472 MNH/OG MISPRINTING ERROR

$ 6.38 $ 3.82

LOT OF 6 FEDERAL DUCK STAMPS ERRORS FREAKS & ODDITIES Stamps (RW EFO 1)

$ 879.99 $ 527.99

1299 Misperf Error / EFO Strip of 3 "Thomas Jefferson" Mint NH

$ 6.59 $ 3.95

1949a, Misperforated Error Booklet Pane of 10 - Mint NH - Stuart Katz

$ 30.69 $ 18.41

3472a - .50 Capitol Horiz. Pair - Die Cutting Omitted - RARE

$ 440 $ 264

US - 1966 - 6 Cents Franklin D. Roosevelt Issue Miscut Jumbo Stamp # 1284 Used

$ 8.79 $ 5.27

2955a Red Engraving Missing VF-XF OG NH with PFC Cert. SCV. 5 (JH 4/3/2020)

$ 464.64 $ 278.78

3281e 33c Flag over City Small Date Die Cut Omitted Error Pair

$ 197.95 $ 118.77

1305E - 15c Misperf Error / EFO Pair "Oliver Wendell Holmes" Mint NH (STK16)

$ 4.83 $ 2.89

C76 pair first man on the moon ink smear Variety at plate # & right side letter

$ 5.23 $ 3.14

1556, Mint VF NH Reverse Printing Under Gum Error With Normal - Stuart Katz

$ 30.8 $ 18.48

1284, Mint NH 6¢ Scarce Misperfed Error Block of Four Stamps - Stuart Katz

$ 30.8 $ 18.48

#2062b BLOCK OF 4 OG NH BLACK OMITTED MAJOR ERROR "STREET CARS" BQ5222

$ 418 $ 250.8

US Scott #16T44b Revenue BLK/6, Imperf Between Verticals Prs (2) SCV 0+! (SK)

$ 87.12 $ 52.27

#2523b 29c Flag Over Rushmore EFO Misperforated Pair MNH OG VF "Incs New Mount"

$ 17.6 $ 10.56

MISPERFORATED 1618a Joint Line, Precancel Gap Strip of 7, Dull Gum &Mat Variety!

$ 17.38 $ 10.42

1614 & 1615 COIL US MINT STAMPS

$ 0.87 $ 0.52

1452, Mint 6¢ With A HUGE Color Shift Error - WoW - Stuart Katz

$ 35.15 $ 21.09

UX1 FIRST UNITED NATIONS POST CARD WITH INVERTED SURCHARGE At The Top. Scarce

$ 132 $ 79.2

US # 4488a (2010) MNH EFO: Vert. pair, Horiz, unslit between - Rare SCARCE!

$ 392040 $ 235224

2511a, Mint NH 25¢ Large Black Color Shift Error Block - Stuart Katz

$ 110 $ 66

SC #3835a "37¢ DR. SEUSS" 2004 DIE CUTTING OMITTED BLK/4, MAJOR ERROR garyposner

$ 2094.4 $ 1256.64

US 319 @ (1903) MNH {George Washington} EFO: ERROR: Fold over/Crazy Perf

$ 792 $ 475.2

US Scott 1402 Coil Line Pair, major perf error, strip of 3, MNH

$ 8.8 $ 5.28

895 Double Paper!

$ 35.2 $ 21.12

248 Cent Major Error, Way Off Center Scott 1445, Christmas, MNH Nice SKU# 19143.

$ 21.95 $ 13.17

#505 Double Error N.H. SCV 00 (GP2 8/16/19)

$ 880 $ 528

2561a. District of Columbia. NH Black Engraved Color "29¢" Omitted Error. Pair.

$ 74.8 $ 44.88

#2178 Sheet, Dramatic Perf Shift, Never Hinged (GD 6/16)

$ 748 $ 448.8

#2279 VAR. "YOSEMITE" STRIP OF 4 WITH "BURNING FOREST" ERROR BT5734

$ 107.8 $ 64.67

2344 25 Cent New Hampshire "Old Man of the Mountain" Nice Color Shift.

$ 10.51 $ 6.3

US Sc# 1197 VAR *MINT OG NH* { "RARE MISPERF ERROR BLOCK OF 25 } 4c LOUISIANA

$ 308 $ 184.8

915b Error Partial Reverse Printing PSE Cert. VF-XF OG NH (JH 4/3/2020)

$ 87.12 $ 52.27

2967a, Mint VF NH 32¢ Imperforate Pair Error Mariyin Monroe - Stuart Katz

$ 220 $ 132

U.S. MINT MISPERFED ERROR COLLECTION

$ 13.19 $ 7.91