1943, Flag of Czechoslovakia, 5c blue violet, blue, red and black, double impression of ''Czechoslovakia'', full OG, NH, VF, C.v. $600 (Image)

1968, Waterfowl Conservation, 6c multicolored, a single with red and blue colors omitted, full OG, NH, VF, C.v. $350 (Image)

1969, Folklore issue, (6c) multicolored, top sheet margin single with black and Prussian blue colors omitted, full OG, NH, VF, C.v. $400 (Image)

1969, Christmas, 6c dark green and multicolored, light green color omitted, block of ten (5x2) with straight edge at left, full OG, NH, VF, C.v. $300 as singles (Image)

1969, Christmas issue, 6c green and multi, inverted and shifted to the bottom Baltimore, MD pre-cancel in green, full OG, NH, VF, C.v. $225 (Image)

1969, Christmas issue, 6c dark green and multicolored, inverted black Atlanta, GA pre-cancel, top sheet margin plate No.31097 and 31157 block of four, full OG, NH, VF and scarce multiple, a common pre-cancelled Atlanta, GA block is included, PSAG certificate for block of ten, the offered block was at left, C.v. $2,000 as singles (Image)

1973, Progress in Electronics, (15c) multicolored, top left corner margin single with black engraved color omitted (all inscriptions and denomination), full OG, NH, VF, C.v. $850 (Image)

1974, Horses Rounding Turn, 10c yellow and multi, a single with blue ''Horse Racing'' omitted, in addition red color (US Postage 10 cents) shifted to the top, full OG, NH, VF, C.v. $500++ (Image)

1974, Energy Conservation, 10c multicolored, a single with green and red colors omitted, full OG, NH, F/VF, C.v. $275 (Image)

1975, David W. Griffith, 10c multicolored, right sheet margin single with brown (engraved) color omitted, full OG, NH, VF, C.v. $450 (Image)

1978, Piano, 8.4c dark blue on yellow paper, horizontal imperforate pair of coil stamps, pre-cancelled ''WASHINGTON DC'', full original shiny gum, NH, VF, C.v. $500 (Image)

1977, Marquis de Lafayette, 13c blue black and red, top sheet margin block of four with "Mail Early..." message, upper stamps has missing red color due to strong shift of horizontal perforation, while bottom ones have red inscription at top instead of bottom, full OG, NH, VF, C.v. $600 as two singles (Image)

1978, Christmas, Madonna and Child, 15c multicolored, side margin (bottom part of a sheet) imperforate block of 16 (8x2), full OG, NH, VF, C.v. $560 as 8 pairs (Image)

1978, Christmas, Hobby Horse, 15c multicolored, right sheet margin block of four with horizontal gutter between stamps, full OG, NH, VF and scarce multiple, priced in Scott with "-" for vertical pair with gutter, Est. $400-$500 (Image)

1980, Architecture, 15c x4 black and red, top right corner sheet margin se-tenant block of four, upper stamps (No.1838-39) with missing red color due to strong perforation shift, plate No.39429 on UR stamp, lower stamps with red text at top instead of bottom, full OG, NH, VF and rare, C.v. $400++ (Image)

1984, Richard Russell, 10c greenish blue, top right corner imperforate block of four, full OG, NH, VF and scarce, reportedly this imperfs are from a printer's waste, Est. $300-$400 (Image)

1981, Electric Car, 17c ultramarine, coil stamp, horizontal imperforate strip of five with plate No.2 at the bottom of right stamp, full OG, NH, VF, US Errors C.v. $950 (Image)

1984, Alaska Statehood, 20c multicolored, top sheet margin block of four with horizontal perforation strongly shifted to the top, resulting in upper stamps have missing part of the design, while lower ones have bottom inscription at the top, full OG, NH, VF, Est. $100-$150 (Image)

1984, Smokey Bear, 20c multicolored, bottom left corner sheet margin ZIP block of six (2x3), imperforate between top and middle stamps and at the bottom, full OG, NH, VF and scarce positional piece, C.v. $300 for two pairs imperforate between stamps (Image)

1984, Hispanic Americans, 20c multicolored, vertical pair imperforate horizontally, full OG with tiny (3mm) and very slight wrinkle at left of top stamp, NH, VF and scarce, C.v. $1,250 (Image)

1985, AMERIPEX '86, (22c) multicolored, red, black and blue engraved colors omitted, block of four, full OG, NH, VF, C.v. $440++ (Image)

1986-91, Stagecoach 4c reddish brown and Canoe 5c brown and gray, two horizontal imperforate pairs of coil stamps, full OG, NH, VF, C.v.$400 (Image)

1987, Pan American Games, (22c) multicolored, a single with silver color omitted, usual centering, full OG, NH, C.v. $550 (Image)

1989, 20th Anniversary of the Moon Landing, $2.40 multicolored, right sheet margin plate No.11211 horizontal imperforate pair, full OG, NH, VF, C.v. $375 (Image)

1989, Christmas issue, Madonna by Carracci, 25c multicolored, top sheet margin single with red (litho) color omitted, full OG, NH, VF, C.v. $300 (Image)