$149.95

2492 32¢ Rose Imperforate and With Color Omitted Block of 4 - Stuart Katz

$39.95

1008, Mint NH 3¢ NATO Spectacular Misperforation Error Pair - Stuart Katz

$22.5

US LOT/5 Blocks/PB's, Scott #1529 1190 1041 1555 1473 Color Shifts, EFO's! (SK)

$1.5

John F. Kennedy...11 Cent Aerogramme

$142.07

ERROR 1948 CHRISTMAS SEAL BLOCK WITH MULTIPLE CIRCULAR MARKINGS MNH

$24.99

1436 Misperf Error / EFO Pl# Block "Emily Dickinson" Mint NH

$49.95

899, Mint OG NH 1¢ Misperforated Error Strip of Ten Brooklyn NY * Stuart Katz

$49.95

Perfectly Flawed SN 2169 MNH - Misperf on Custom Presentation Panel 8.5” X 11”

$25

EFO 1402 MISPERFED COIL PAIR ---PERFS CREATE A "SPLITTING HEADACHE" FOR IKE.

$12.95

1305E, Mint NH 15¢ Misperfed Coil Line Strip of Four * Stuart Katz

$9

EFO 841 2c PREXY COIL MISCUT TO SHOW STAMP AT BOTTOM ON ALASKA AIR COVER

$78.83

RARE ERROR BOYD'S DISPATCH STAMP WITH SIGNIFICANT VERTICAL MISPERF