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C115 Trans Pacific Airmail Color Shift Plate Block

$ 48.4 $ 29.04

US ERROR Stamps #1402a Eisenhower. Perf to Imperf transition coil strip! MNH

$ 8.79 $ 5.27

US Stamps - EFO - #677 8c Nebr. Overprint - Pair w/Wide Spacing in Strip/3 - MNH

$ 131.99 $ 79.19

EFO-Scott #2121a - 22¢ Seashell Booklet pane of 10 with horizontal Plate Scratch

$ 8.75 $ 5.25

US, 1934 Trudeau TB Sanitorium Christmas Seal Blue Offset Exhibit & FREAK, MNH

$ 25.15 $ 15.09

US Sc 3261,3472,3647A,4018,4144,4268 used. 1998-2008 Priority Mail, 6 diff, F-VF

$ 17.57 $ 10.54

#2523C  29 Cent Rushmore Toledo Brown Coil Stamp - of 5 MNH OG F-VF

$ 70.35 $ 42.21

#1699a HORIZ. PAIR "CLARA MAASS" XF-SUPERB NH W/ IMPERF VERT MAJOR ERROR BT3057

$ 308 $ 184.8

EFO 1596 RED SMEAR AT RIGHT OF STAMP INTO BOTTOM MARGIN ALSO RED INK "GHOSTS"

$ 17.6 $ 10.56

US SCOTT #1502a BLACK Omitted, SCV 0.00, Shown w Normal, Awesome! garyposner!

$ 396 $ 237.6

U.S. Scott #2903a (5c) Mountain BEP Pair TAGGED IN ERROR MNH OG VF Cat. .00

$ 3.51 $ 2.1

1468. Color Shift Error NH Mint Sheet cat w/ 2 tails all double image

$ 101.2 $ 60.72

1470, Color Shift ERROR Sheet of 50 8¢ Tom Sawyer Stamps - Stuart Katz

$ 352 $ 211.2

1898Ae Scarce PNC3 #3 Tagging Omitted Error Mint NH

$ 158.39 $ 95.03

US Sc 2394, 2540, 2541 used. 1988-1991 Priority & Express Mail Eagles, sm faults

$ 7.89 $ 4.73

#1041 Statue Of Liberty over ink freaks plate block of 4 Mint NH OG 1954

$ 21.95 $ 13.17

USA #CVP91b - blue color printing variety (most likely due to doctor blade)

$ 14.87 $ 8.92

EFO #E14 black plate number offset printing on gum side

$ 19.8 $ 11.88

US #526, Type IV, offset print, EFO, plate number single with 2 plate numbers.

$ 44 $ 26.4

E19 - Scarce 20c Misperf Error / EFO Special Delivery "Post Office Truck" MNH

$ 19.35 $ 11.61

EFO 925-C34 (10) COLLECTION OF TEN DRY AND SMEAR PRINTING ISSUES

$ 88 $ 52.8

C23a Airmail Imperf ERROR Mint Pair of 2 Stamps NH (Stock C23 By 311)

$ 290.39 $ 174.23

#1057 EFO Coil Line Strip of 5 w/Partial Plate # MNH OG VF "Includes New Mount"

$ 17.6 $ 10.56

US #219v (1890) 1c Benjamin Franklin - Blue - Used - EFO: Flame on 1s - XF/S

$ 3168 $ 1900.8

US Stamp Scott # 220a (1890) 2c Used  - With Cap on 'LEFT' #2

$ 6.16 $ 3.69

US Scott #4868b, 2014 "FOREVER" FLAG ISSUE, PLATE NO. COIL OF 6! from garyposner

$ 1144 $ 686.4

US # 220a (1890) 2c-Used-Fine-EFO: Guide Line Arrow Tip - 1/400 {Scarce/Rare}

$ 395.96 $ 237.57

US # 4806 (2013) - Inverted (center) Jenny S/S Error: Missing red line! RARE

$ 3960 $ 2376

1995 ATOMIC BOMBS END WWII NON-ISSUED RESCINDED US STAMP 4 Varieties MNH VF

$ 19.36 $ 11.61

#1903B IMPERF COIL PAIR BM2413

$ 66 $ 39.6

US Scott #1938a, Black Color Dramatically Shifted! Mint-NH (SK)

$ 30.79 $ 18.47

US, 1939 Christmas Seal, Pink Doubling, Misperforated, Perf 12 1/2 3S, MNH

$ 57.71 $ 34.63

Scott 319 Variety Mint Vertical Pair (Washington) NH/H Misperfed EFO E5

$ 66 $ 39.6

632 1 Cent Franklin Pair with Smear on Stamp at Left.

$ 8.75 $ 5.25

EFO REVENUE COLLECTION OF TWELVE WITH PRE-PRINTING PAPERFOLDS

$ 88 $ 52.8

EFO C84 "LOW TIDE" VARIETY WITH BLUE COLOR SHIFTED TO RIGHT AWAY FROM SHORE

$ 39.6 $ 23.76

703 "Yorktown" Huge Color Shift Error / EFO Plate# Block Mint NH

$ 14.95 $ 8.97

Legends of the West Error Sheet and Normal Sheet - Scott#'s 2869 & 2870 - MNH

$ 52.8 $ 31.67

1610, Flame Color Shift Error Mint Never Hinged * Stuart Katz

$ 26.35 $ 15.81

702, MNH Red Cross Shifted Left Error In Complete Sheet of 100 - Stuart Katz

$ 440 $ 264

EFO 1473 8c PHARMACY COLORS MISREGISTERED 3

$ 22 $ 13.2

US. 899. Statue of Liberty Vertical Pair almost Imperf. Only 3 Half Hole. RARE.

$ 17.13 $ 10.28

RARE ERROR 1993 Garden Flowers Error Stamps, Postal Commemorative Society

$ 110 $ 66

#1618b Coil Strip EFO Freak 13c Liberty Bell Misperforated Strip of 9 MNH OG VF

$ 30.8 $ 18.48

#2609a Flag over White House EFO Imperforated Pair MNH OG "Includes New Mount"

$ 13.2 $ 7.91

EFO 498 NH BLK4 NARROW GUM SKIP TOP STAMPS DOUBLE TRANSFER

$ 35.2 $ 21.12

US Scott #2562-66c complete booklet, top strip missing Scar & Brt violet, nh og

$ 131.95 $ 79.17

#U584d BLACK & RED OMITTED "13¢ ENERGY CONSERVATION" ENTIRE, MAJOR ERROR BQ847

$ 374 $ 224.4

EFO 1486 ANGLED HORIZONTAL PERFORATION SHIFT BLOCK OF 4

$ 35.2 $ 21.12

805b, Imperforate Between Pairs in Block Error VF NH - Stuart Katz

$ 43.95 $ 26.37

US # 220 (1890) Used, Grade: XF - EFO: Red streaks at top & bottom

$ 118.8 $ 71.28

EFO 1838-39 (SET OF TWO FROM TOP ROW ) WITH PERF SHIFT TO ELIMINATE RED COLOR

$ 70.4 $ 42.24

Unites States Stamp-- #1555 shift of words/color---used---error

$ 0.88 $ 0.52

U.S.-Reverse(printed inside envelope) image of .02 red Geo. Washington

$ 8.8 $ 5.28

S5/36 US Stamps Scott Perf Shift Error UNH Nice EFO Coll

$ 3.38 $ 2.03

1111 8 Cent Simon Bolivar Underinked Wreath.

$ 7.87 $ 4.72

momen: US Stamps #236 Var. Printed on Both Sides Mint NH OG Rare PF Cert

$ 1315.6 $ 789.35

EFO 979 VERY HEAVY OVERINKING OF THIS PLATE BLOCK OF FOUR -- STRIKING!

$ 44 $ 26.4

#702 2c Greatest Mother Red Cross Error "4 Varieties" MNH OG F/VF #2

$ 12.32 $ 7.39

2149a "Buggy Whip" Plate #4 Strip of 8

$ 19.8 $ 11.88

1395a 8c Eisenhower miscut showing process bars DG

$ 8.58 $ 5.14

Scott Stamp # 1338 (6c) FLAG OVER WHITE HOUSE, Misperf Block of 4, MNH OG

$ 2.64 $ 1.58

#1435c 8¢ 1971 "APOLLO 15" OG NH TAGGING OMITTED MAJOR ERROR; PSE CV 0 BR9726

$ 117.04 $ 70.22

2609a 29 cent Flag Over White House Miscut and Imperforate Error Pair

$ 7.92 $ 4.75

1327a Thoreau TAGGING OMITTED ERROR MARGIN Block of 4 Stamps NH with APS Cert

$ 703.99 $ 422.39

#702 "CIRCLE-OF-CROSSES" - RED CROSS COLOR SHIFT STUDY

$ 30.75 $ 18.45

EFO 1557 VERY RARE STRONG OFFSET OF BLACK INK ON FRONT OF THIS TOP STAMP

$ 26.4 $ 15.83

1975 Francis Parkman #1297 Coil Stamp Overprint & Misperforation Error

$ 5.72 $ 3.43

#2482a "BOBCAT" .00 BLACK OMITTED MAJOR ERROR BQ5231

$ 138.6 $ 83.16

EFO 853 PERF SHIFT CUTS INTO THE PLATE NUMBER

$ 52.8 $ 31.67

Postage due J90 2 cents shifted down block of 15 MNH OG shining gum

$ 43.95 $ 26.37

RARE 304 Used Lincoln Double Cut Line Upper Right Position 91 EFO

$ 22 $ 13.2

#304 5 cent Lincoln Mint NH OG perf. shifted down

$ 22.25 $ 13.35

US #1610var .00 Candle Holder, Imperf Margins Single, MAJOR ERROR, used

$ 352 $ 211.2

US, 1945 Christmas Seal Blocks, Color Shift Error, Orange Wreath Bow, WX125, MNH

$ 32.19 $ 19.31

EFO 1039 VERY HEAVY OVERINKING BLOCK OF FOUR WITH NORMAL BLOCK OF FOUR

$ 39.6 $ 23.76

Scott 409 Variety Mint Block of 4 (Washington) Type I Printer's Waste EFO E0

$ 96.8 $ 58.08

#1699a "CLARA MAASS" IMPERF PAIR MAJOR ERROR BQ1173

$ 330 $ 198

C76a & C76 Var, US Flag On Shoulder Omitted ERRORS in Complete Sheet of 32 MNH

$ 2639.99 $ 1583.99

CHRISTMAS - TWO MORONI MADONNA + CHILD - 1987 Scott 2367 with FREAK ERROR (232b)

$ 15.66 $ 9.39

US #1823 .15c EMILY BISSELL STUNNING "CHANGE OF DESIGN" MISPERF MNH NICE

$ 14.07 $ 8.44

SCOTT 1519a 1973 10 CENT CROSSED FLAGS ISSUE IMPERF PAIR MNH OG VF CAT !

$ 13.2 $ 7.91

1958 U.S. Scott #1058 Lincoln Stamp Mint Never Hinged MISPERFS Error

$ 3.51 $ 2.1

1529 Skylab Dramatic Color Shift ERROR Zip Code Block of 4 Stamps NH (1529 A1)

$ 659.99 $ 395.99

US, 1943 Christmas Seal, Bleeding TB Lorraine Cross, Red TB Cross Doubling, MNH

$ 34.31 $ 20.58

3477 - 34c Huge Misperf Diecut Shift Error/EFO Strip 3 "Statue of Liberty" MNH

$ 14.07 $ 8.44

EFO JQ3 BEAUTIFUL FULL REVERSE OFFSET ON ALL FOUR STAMPS USED BLOCK OF FOUR

$ 88 $ 52.8

AOP USA #1472 1972 8c Santa Claus printing error MNH

$ 2.64 $ 1.58

#1549 pair Retarded Children 10 cent Misperforated Error mint NH OG

$ 8.75 $ 5.25

2913 - Misperf Error / EFO Flag Over Porch "FOP" Pair Mint NH (Stk2)

$ 5.97 $ 3.58

1529 Skylab color shift-white bar above partial "US", vf MNH*

$ 5.27 $ 3.16

2018 Statue/Freedom #5296; EFO; Sheet/10 w/Shifted Diecut; ~25% Captured PL#s

$ 30.79 $ 18.47

US, 1926 Jester Christmas Seal Block, 26-2.A Green's Flaw & Skipped Perfs, MNH

$ 12.83 $ 7.7

US #3265a (33¢) "H" imperf pair, VF NH MNH

$ 30.75 $ 18.45

*295 "SINKING TRAINS" PL # STRIP OF 5, NICE!

$ 438.24 $ 262.94

CatalinaStamps: Pan American Exposition 2 Cent REPRODUCTION, Lot B109

$ 0.44 $ 0.26

S5/33 US Stamps Scott Perf Shift Error UNH Nice EFO Coll

$ 3.38 $ 2.03

S5/37 US Stamps Scott Perf Shift Error UNH Nice EFO Coll

$ 3.38 $ 2.03

#1356 VAR. "MARQUETTE" PLATE # BLOCK OF 4, MAJOR COLOR SHIFT ERROR BQ4042

$ 154 $ 92.4

#C85 VAR. "OLYMPIC SKIER" MAJOR COLOR SHIFT ERROR BR2177

$ 58.52 $ 35.11