1978, Wright Brothers issue, 31c multicolored, ultra and black engraved colors dramatically shifted to the top, block of four vertical se-tenant pairs, full OG, NH, VF, a beautiful and scarce item (Image)

2012, View of Lancaster County, PA, $1.05 multicolored, self-adhesive stamp, top left corner sheet margin plate No. S11111 vertical pair with die cutting omitted on front, backing paper intact, VF, C.v. $700 (Image)

Hussey's Post, New York, N.Y.. 1858, (1c) rose red, complete sheet of 46, bottom row is sideways and forming six couche, unused, no gum, fresh and VF, PF certificate, C.v. $350 (Image)

Swarts' City Dispatch Post, New York, N.Y.. 1849, Zachary Taylor, (2c) red, complete sheet of 25, stone 2, perfect condition, full OG, NH, VF, PF certificate, C.v. $600 as hinged (Image)

1926, White Plains Philatelic Exhibition, 2c carmine rose, complete pane of 25, plate No. 18771, nicely centered, full OG, NH, VF, C.v. $575 (Image)

1938, Presidential issue, $1 purple and black, vertical pair imperforated horizontally, full OG, NH, VF, PSE certificate for block of four (this one is right pair), C.v. $1,100 (Image)

1959, San Martin 4c blue, left margin horizontal pair imperforated between stamps, left perforation shifted to the right as always exists, full OG, NH, VF, only 20 pairs recorded, C.v. $900 (Image)

1974, Minerals, 10k multicolored, left sheet inscribed margin se-tenant block of four, light blue and yellow (litho) colors omitted, full OG, NH, VF, C.v. $900 (Image)

1975, ''Pioneer 10'' Passing Jupiter, 10c multicolored, left sheet margin single with dark blue (engraved) omitted, full OG, NH, VF, C.v. $450 (Image)

1976, Declaration of Independence, 18c multicolored, souvenir sheet of five, denomination omitted on ''d'' variety, full OG, NH, VF, C.v. $425 (Image)

1976, Washington Reviewing Army at Valley Forge, 31c multicolored, souvenir sheet of five, all perforation strongly shifted to the top, leaving four (''a''-''d'') stamps without denomination, full OG, NH, VF and a spectacular item (Image)

1977, Colorado Statehood issue, 13c multicolored, horizontal pair imperforated between stamps with straight edge on the right, full OG, NH, VF and scarce, C.v. $650 (Image)

1979, John Paul Jones issue, imperforated multicolored proof of 15c, horizontal strip of four with vertical gutter in the middle, full OG, NH, VF, C.v. $750++ (Image)

1979, John Paul Jones issue, imperforated multicolored proof of 15c, vertical pair with horizontal gutter in the middle, full OG, NH, VF, C.v. $600 (Image)

1979, Christmas, Gingerbread Santa Claus, 15c multicolored, top right corner margin single with green, yellow and brown colors omitted, black one is misplaced as always, usual centering, full OG, NH, fine, C.v. $400 (Image)

1980, Benjamin Banneker, 15c multicolored, left sheet margin vertical imperforated pair with gutter in the middle, no color misregistration as typical for printer's waste items, full OG, NH, VF (Image)

1980, Coral Reef issue, 15c multicolored, imperforated se-tenant block of four, full OG, NH, VF, C.v. $350 (Image)

1983, Omnibus, 1c violet, coil stamp, imperforated plate No.5 strip of five, joint line is between second and third stamps, full OG, NH, VF and rare, Datz C.v. $2,000, imperforated plate No. strips are not priced in Scott (Image)

1981, Christmas issue, (20c) multicolored, bottom sheet margin block of four with vertical blind perforation, imperforated horizontally, full OG, NH, VF, PF certificate, C.v. $1,500 as two pairs (Image)

1981, Desert Plants, 20c multicolored, se-tenant corner margin block of four, brown (litho) color omitted, full OG, NH, VF and rare, only 20 se-tenant blocks recorded, a common block is included for comparison, PF certificate, C.v. $3,000 (Image)

1986, Arctic Explorers, 22c multicolored, right sheet margin se-tenant block of four, top stamps with omitted black color, full OG, NH, VF, C.v. $1,000 (Image)

1989, Christmas, Madonna and Child, 25c multicolored, left sheet margin single with red (litho) color omitted, edge showing omitted red control stripe also, full OG, NH, VF, a common stamp is added for comparison, C.v. $400 (Image)

1990, Greetings, 25c multicolored, top sheet margin vertical strip of three imperforated horizontally, full OG, NH, VF and scarce, PF certificate, C.v. $500 for vertical pair (Image)

1991, Fishing Flies, 29c multicolored, block of 25 contains five vertical se-tenant strips of five, imperforated vertically and at the bottom between stamps and gutter, plate No.22133, full OG, NH, VF, according to Scott this item came from a printer's waste (Image)

1992, Love, 29c multicolored, right sheet margin horizontal transition strip of four, imperforated vertically, third stamp from the left has partially omitted green color, right stamp has omitted it completely, full OG, NH, VF and rare, Datz mentioned only five such strips possible, PF certificate for unique complete sheet of 50, C.v. $2,050++ (Image)