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SCOTT 1895d, 1981 20 CENT FLAG OVER SUPREME COURT IMPERF PAIR ON COVER!

$ 14.08 $ 8.44

1617, Mint NH 10¢ Stunning Misperforated ERROR Block - Stuart Katz

$ 26.4 $ 15.83

ERRORS, FREAKS & ODDITIES 1158 Mint (ID # 103580)

$ 44 $ 26.4

702 2¢ Red Cross shift up MNH

$ 1.66 $ 0.99

US Sc 4718-4720 used. 2012 Waves of Color, , , values, small perf faults

$ 12.98 $ 7.78

US Sc 4378, 4511, 4649, 4927, 5040, used. 2009-16 Priority Mail, 5 diff, VF

$ 25.96 $ 15.57

1519a, Mint VF NH 10¢ Imperforfate Line Strip of 4 Stamps Error - Stuart Katz

$ 52.8 $ 31.67

2609a / Flag over White House / Strip of 6 Imperf Error / MNHOG

$ 23.27 $ 13.96

2252b 3¢ CONESTOGA WAGON IMPERF Strip of 5 SHINY GUM RARE MAJOR ERROR

$ 4116.64 $ 2469.98

2142a, Mint XF NH 22¢ Imperforate Between Error PB PFC Certificate - Stuart Katz

$ 347.6 $ 208.56

Ghost Tagging Doubling Interphil Philatelic Exhibition Error Oddity Stamps #1632

$ 4.39 $ 2.63

EFO 279B BOTH VERTICAL AND HORIZONTAL BLIND PERFS CROSS NEAR CENTER OF STAMP

$ 35.2 $ 21.12

US Stamps #3198-3202 32¢ Alexander Calder Pane of 20

$ 3.52 $ 2.11

US Scott #1861 Thomas H. Gallaudet 1983 MNH Mint NH EFO perforation shift

$ 7.91 $ 4.74

1856c - 14c Imperf Between Error/EFO Bottom Margin Pair Mint NH

$ 4.83 $ 2.89

US, Sc # 333, MH,1908, George Washington, ERROR, FREAK, ODDIE, ZXC-D

$ 44 $ 26.4

2280 c coil strip of 3 IMPERFORATE ERROR NH from 1988

$ 8.8 $ 5.28

#1427-1430b, WILDLIFE, LT & DK GREEN OMITTED ERROR W PFC ONLY 8 EXIST garyposner

$ 2431 $ 1458.6

#1431 VAR. "8¢ ANTARCTIC TREATY" RED COLOR MISSING HV4261

$ 660 $ 396

EFO UC32 ERROR- BOTH RED AND BLUE COLORS MISSING - NOT LISTED WITH BOTH MISSING

$ 528 $ 316.8

#1760-1763 "OWLS" MAJOR COLOR SHIFT ERROR BR2831

$ 308 $ 184.8

1299b Imperforate Strip of 4 XF-Superb OG NH SCV. (JH 4/3/2020)

$ 26.4 $ 15.83

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

$ 703.99 $ 422.39

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

$ 703.99 $ 422.39

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

$ 703.99 $ 422.39

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

$ 703.99 $ 422.39

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

$ 703.99 $ 422.39

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

$ 703.99 $ 422.39

1356, Mint LH 6¢ Large Color Shift Major Error - Stuart Katz

$ 17.55 $ 10.53

Error Ameripex Stamp Collecting Booklet #2198 2201 Folio 2198 2199 2200 2201

$ 17.16 $ 10.29

U.S. Depart. of the Interior Migratory Bird Hunting and Consevation Stamp Clock

$ 30.79 $ 18.47

#1057d "LIBERTY" STR/6 TAGGED SMALL HOLES; PSE CERT (LOOK MAGAZINE COIL) BR8955

$ 58.52 $ 35.11

1923 US 2c Washington Scott 599 Perf Error (Back side) MH

$ 5.72 $ 3.43

#1937-#1938 1981 18c EFO American Bicentennial Full Sheet Color Shift Errors

$ 85.8 $ 51.48

1985 Henry Knox 8c US Stamp Scott #1851 MNH/OG PERFORATION ERROR

$ 6.99 $ 4.19

1769 15 Cent Xmas Block Of 4 With Horizontal Gutter And 100% Of The Other Stamps

$ 527.12 $ 316.27

PITCAIRN ISLANDS 1950 1-1/2d KGVI TO ENGLAND.  SCARCE!

$ 17.55 $ 10.53

US Scott 1371 Toning Or Paper Error? Apollo 8 Space Mission Stamp

$ 0.88 $ 0.52

1595c Miscut M/NH Booklet Pane

$ 2.64 $ 1.58

EFO C32 VERY HEAVY OVERINKING -- DRAMATIC FLIGHT THROUGH RED CLOUD!

$ 22 $ 13.2

US ERROR Stamps: #1895d Flag Courthouse. Imperf & miscut PS7 #3 PNC MNH 0.++

$ 307.12 $ 184.27

US ERROR Stamps: #3054a Rose Flower Die cut omitted PS7 #5555 PNC MNH 0.

$ 351.12 $ 210.67

#807 Thomas Jefferson full mint sheet ink smear Variety at most of sheet MNH OG

$ 703.12 $ 421.87

US #2607c 23¢ USA Written With Flag, Imperf Imperforate Pair, VF NH MNH

$ 24.42 $ 14.65

US #467 5¢ carmine (ERRORS) Center stamps Block 12, NH/LH, VF

$ 1320 $ 792

EFO 807 INK DISTORTION DURING PRINTING POSSIBLY FROM PRESS CLEANING LIQUID

$ 24.2 $ 14.52

Coil Stamp Pair 1968 Oliver Wendell Holmes #1305E MISPERFORATION ERROR MNH

$ 5.28 $ 3.16

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

$ 23.76 $ 14.25

1705, Two Different Large Color Shift ERRORS Mint NH - Stuart Katz

$ 44 $ 26.4

C95-C96 Wiley Post Vertical pair Color shift 25¢ Error EFO MNH Pair In 1979

$ 25.52 $ 15.31

1199, Mint NH 4¢ Misperfed Error Girl Scout Stamp RARE! - Stuart Katz

$ 39.6 $ 23.76

1541b Error Block Lt. Blue and Yell Omitted VF-XF OG NH SCV. 0 (JH 4/3/2020)

$ 523.6 $ 314.16

EFO 24 USED WITH MISCUT WIDE RIGHT MARGIN SHOWS PART SHEET INSCRIPTION

$ 39.6 $ 23.76

1935 Yosemite Sc 769 FARLEY horizontal pair inking ERROR scarce

$ 28.9 $ 17.34

**US # 2870 Legends of the West Recalled Error Sheet / MNH XF / FREE SHIPPING.

$ 70.35 $ 42.21

1608 Color Shift Mint Never Hinged

$ 43.12 $ 25.87

#1520 MNH OG Jefferson Memorial booklet pane of 8 miscut.

$ 8.31 $ 4.98

SC#C25 1941 6C TRANSPORT BLOCK OF 4 ERROR INK SMEAR NEVER HINGED

$ 35.15 $ 21.09

1704a Error Horiz. Pair Imperf Vert. VF-XF OG NH SCV. 5 (JH 4/4/2020)

$ 246.4 $ 147.84

US Sc# 1520 10c Misperf Error / EFO Pair "Jefferson Memorial” Mint NH. FREE Ship

$ 11.39 $ 6.83

U.S. #1455a Mint NH w/Cert - 1972 8c Family, Missing Yellow

$ 245.52 $ 147.31

U.S. Scott #2260b 15c Tugboat UNTAGGED ERROR PAIR EFO MHN OG F-VF

$ 1.75 $ 1.05

#RW53 VAR. .50 DUCKS BLOCK OF 4 WITH BLACK COLOR SHIFT ERROR HV7701

$ 440 $ 264

P854 US stamps Scott ? 8c Plate Number Shown Error UH Nice Coll

$ 7.78 $ 4.67

EFO, miscut with partial plate number, used, 4 cent Lincoln Liberty Issue

$ 1.1 $ 0.66

.37 MARY CASSATT PAINTING CUT ERROR STAMP BOOKLET SHEET

$ 52.79 $ 31.67

1856c Sinclair Lewis 10 Imperforate Strips of 4 Mint NH OG 40 stamps block

$ 48.4 $ 29.04

US ERROR Stamps: #2913a Flag Porch. XFS Imperf PS7 #44444 PNC MNH 0.++

$ 289.52 $ 173.71

1552, Mint RARE Color Shift Error - Comes With a Normal Too! - Stuart Katz

$ 66 $ 39.6

#1469 Error vs. Normal - Osteopathic Medicine stamp Mint Never Hinged - Perfect!

$ 17.16 $ 10.29

EFO Prexie 3c 807 Under inked block of 40 Stamps 1938 ERROR Dry print

$ 111.76 $ 67.05

#1906 17c Electric Auto EFO Misperforated Pair MNH OG "Include New Mount"

$ 3.52 $ 2.11

236 - 8c Scarce Columbian Misperf Error / EFO Very Clean Used

$ 52.79 $ 31.67

EFO 1339 BOTTOM MIDDLE STAMP MISSING MUCH COLOR IN FLOWER

$ 44 $ 26.4

R9c 2c cert stray perfs, f-vf cv 45.-

$ 3.95 $ 2.37

1987 Christmas Ornaments 22c Stamp #2368 MNH/OG PRINTING ERROR

$ 5.5 $ 3.3

US Sc 4439 used. 2010 .30 Bixby Creek Bridge Express Mail, sound, VF

$ 21.09 $ 12.65

EFO 2015 MISLAIGNED ROW OF PERFS CREATES "SKINNY STAMPS & THICK STAMPS"

$ 17.6 $ 10.56

EFO 267 MINT NEVER HINGED PLATE SINGLE

$ 15.4 $ 9.24

1467a, 8¢ Block With Color Shift Error Makes For Doubling of Design Stuart Katz

$ 74.8 $ 44.88

US EFO Sc 1618b 13c Liberty Bell Imperf Pair VF MNH

$ 8.79 $ 5.27

Scott#: C88 - Mt. Rushmore National Memorial Single Stamp MNH OG -- Free Ship --

$ 1.38 $ 0.82

US Error EFO Plate Number Scott 807a Mint MNH OG Miscut Booklet Pane G699

$ 8.79 $ 5.27

US #1384c 6¢ Christmas Issue, Plate Strip of 20 w/light green color omitted

$ 237.6 $ 142.56

US 1935 Christmas Seal Blocks, Blue Offset Gum Side Exhibit, 4 Corners, MNH

$ 28.67 $ 17.2

#1555a "D W GRIFFITH" 10¢ (BROWN) OMITTED MAJOR ERROR HV5715

$ 440 $ 264

Scott #1213a, 5c George Washington Booklet Sheet, Splice Error

$ 4.39 $ 2.63

1556b, Mint VF NH 10¢ Dark Blue Color Omitted Error W/Normal - Stuart Katz

$ 342.32 $ 205.39

C98 - Color Shift Philip Mazzei Plate Block of 12 40 Cent Airmail Postage Stamps

$ 396 $ 237.6

US EFO Sc 651 Rogers Clark Vignette Shift Down Over Lettering Single XF-Gem MNH

$ 25.51 $ 15.3

1998 SYLVESTER TWEETY BIRD Looney Tunes MNH Pane 10x32¢ Stamps 3205 Imperforate

$ 11.32 $ 6.79

1489-98a Postal People Tagging Omitted. MNH

$ 175.12 $ 105.07

EFO 305 THREE COLOR VARIETIES USED

$ 6.16 $ 3.69

1111, 8¢ Stamp 90% of Wreath Missing ERROR With Normal Stamp MNH - Stuart Katz

$ 30.8 $ 18.48

807a, Mint NH 3¢ Massive Miscut Booklet Pane Error! - Stuart Katz

$ 110 $ 66

US SCOTT #1473a Blue & Orange Color Omitted, Mint-F/VF-NH, SCV 0, garyposner!

$ 316.8 $ 190.08

US # 1863e VAR *MINT OG NH* { "RARE (5) IMPERF BETWEEN ERROR } BEAUTY VERT PAIRS

$ 1320 $ 792

#1395d 8¢ EISENHOWER BKLT PANE OF 25 WITH MAJOR MISCUT ERRORS FULL BP

$ 13.2 $ 7.91

C92a, Mint NH Strip of 4 Color Shift MAJOR ERROR - Very Dramatic - Stuart Katz

$ 83.6 $ 50.16

1947 Robert E. Hannegan Postmaster General Signed Presentation Air Mail Stamp

$ 57.64 $ 34.58