1362a, 6¢ WATERFOWL CONSERVATION, LOWER RIGHT PANE OF 50 #30350 CONTAINTING (5) IMPERF BETWEEN ERROR PAIRS, VF NH, horizontally imperf between rows 6 and 7, giving (5) imperf between pairs and (40) normal singles; trivial natural paper wrinkle affecting one error stamp, otherwise pristine. Very likely the only remaining fully intact sheet known. 1999 Philatelic Foundation certificate. CV for (5) error pairs is $250 each = $1,250 (Image)

$2,000

2045a, 20¢ Medal of Honor, Red Color Omitted Error, VF NH Cat($150) (Image)

$150

2170var, 3¢ Bright Blue, Strip of 20 with color oddity, VF NH, stamps 8 and 17 are under inked (Image)

$15

2920avar, 32¢ Flag over Porch, Pane of 20 with label mis-die cut, horizontally, die cutting mostly through the 32. Stamp #7 now includes the plate no. (V34745) Cat($13)

$60

4144a, $4.60 Air Force One, Black Engraved Color (USA $4.60) Omitted, VF, with 2008 cds ccl from Orrington, ME with light ccl, only 50-60 reported. SCV for mint NH only = $200. Used probably VERY SCARCE to RARE; especially with contemporaneous ccl (Image)

$250

C92b, 31¢ WRIGHT BROTHERS, VERTICAL PAIR, ULTRAMARINE AND BLACK (ENGRAVED) COLORS OMITTED (ERROR), F-VF NH, with normal pair, 150 pairs reported, 2000 APEX certificate Cat($475) (Image)

$475