1967, Alaska Purchase, 8c brown, block of four with two pre-printing paper folds and shift of vertical perforation, as well as horizontal strip of eight representing bottom part of pane with horizontal perforation shifted to the design, full OG, NH, VF, Est. $150-$200 (Image)

1972, Kii Statue and Temple, 11c multi, bottom margin single, blue and green (litho) omitted, full OG, NH, VF, C.v. $425, Est. $150-$200 (Image)

1973, Progress in Electronics, 11c multi, left sheet margin single with vermilion and olive (litho) colors omitted, full OG, NH, VF, C.v. $700, Est. $250-$300 (Image)

1978, Wright Brothers, 31c+31c multi, right margin vertical se-tenant pair in horizontal strip of five, litho colors are practically omitted, full OG, NH, VF, a common pair is included, Est. $250-$300 (Image)

1978, Wright Brothers, 31c+31c multi, vertical se-tenant pair in transition horizontal strip of three, left stamp has all litho colors omitted, full OG, NH, VF and rare, according to Scott Errors Cat. only 15 pairs exist, Est. $800-$1,000 (Image)

1982, Philip Mazzei, 40c multicolored, perforation 10½x11¼, bottom left corner sheet margin plate No. block of 12, yellow, magenta, gray and light blue colors strongly shifted to the left, full OG, NH, VF and a spectacular item, Est. $500-$600 (Image)

1980, Blanche Stuart Scott, 28c multicolored, left sheet margin plate No.39541 horizontal imperforated pair, full OG, NH, VF and rare, C.v. $2,000, Est. $800-$1,200 (Image)

1983, Summer Olympics, 40c x4 multi, right sheet margin imperforated se-tenant block of four, full OG, NH, VF, C.v. $650, Est. $300-$400 (Image)

1985, Lawrence and Elmer Sperry, 39c multi, bottom margin vertical imperforated pair, full OG, NH, VF and rare, according to Scott Errors Cat. only 25 pairs reported, C.v. $1,250, Est. $600-$700 (Image)

1985, Trans-Pacific Airmail, 44c multi, top right corner sheet margin (ZIP) imperforated block of four, full OG, NH, VF, C.v. $1,200 as two pairs, Est. $500-$600 (Image)

1985, Junipero Serra, 44c multicolored, top right corner margin vertical imperforated pair, full OG, NH, VF and scarce, C.v. $950, Est. $400-$600 (Image)

1991, Harriet Quimby, 50c multi, left sheet margin block of four, imperforated horizontally, perfect condition, full OG, NH, VF and scarce, C.v. $1,800 as two pairs, Est. $700-$800 (Image)

1869-23, 21 mostly unused stamps identified on a stock page with extra Philippines No. E1 and Puerto Rico No.24, fresh quality overall, full/part of OG or unused (2), mainly fine centering, C.v. is over $1,700, Est. $150-$200 (Image)

1912, Fernandez de Cordoba, reading down overprint (type II) CANAL ZONE on 2c vermilion and black with inverted center, full OG, previously hinged, VF, C.v. $600, Est. $300-$400 (Image)

1939, 25th Anniversary of the Opening of the Panama Canal, 1c-50c, complete set of 16, unfolded blocks of four, full OG, NH (a few blocks with typical gum waves), VF, C.v. $651 as singles, Est. $300-$400 (Image)

Air Post stamps. 1939, 10th Anniversary of Air Mail Service and 25th Anniversary of the Opening of Panama Canal, 5c-$1, complete set of six, blocks of four, full OG, NH, VF, C.v. $369++, Est. $150-$200 (Image)

1899, definitive issue, Statue of Columbus, Palms, Allegory ''Cuba'', Ocean Liner and Cane Field, large die proofs of 1c-10c, complete set of five printed on India paper and mounted on sunken-die cards, approximate proof size 60x72mm, card size 150x200mm, fresh and VF, C.v. $875, Est. $500-$600 (Image)

1947, Snow Geese, $1 black, top right corner sheet margin plate No.159463 block of six (3x2), full OG (upper right stamp with minimal gum wrinkle,), NH, VF, C.v. $340, Est. $150-$200 (Image)

1964, Fine Arts, 5c ultra, black and dull red, offset of black color on reverse, bottom right plate No. 27937/27940 block of four, both right stamps have complete offset, while two left ones - partial, lower left stamp is defected, still fresh, full OG, NH, VF and a spectacular item, Est. $150-$200 (Image)

1965, Christmas issue, Angel with Trumpet, 5c carmine, olive green and bister, vertical gutter block of four with margin at bottom, fresh and unfolded, full OG, NH, VF, C.v. $800 as two gutter pairs, Est. $300-$400 (Image)

1966, definitive issue, Lincoln 4c black, horizontal imperforated pair of coil stamps, full OG, NH, VF, C.v. $400, Est. $150-$200 (Image)

1971, definitive issue, Flag and White House, top sheet margin plate No. and ZIP block of 20 (10x2), horizontal perforation strongly shifted to the bottom (approximately 12mm), representing 30 instead of 20 Flags on this unit, full OG, NH, VF and a spectacular item, Est. $400-$500 (Image)

1968, Walt Disney, (6c) multicolored, bottom right corner margin ZIP single with ocher omitted (Walt Disney, 6c and etc.), full OG, NH, VF, C.v. $300, Est. $100-$150 (Image)

1968, Waterfowl Conservation, 6c multicolored, vertical pair imperforated between stamps, full OG, NH, VF, C.v. $250, Est. $100-$150 (Image)

1968, Waterfowl Conservation, 6c multicolored, a single with red and blue colors omitted, full OG, NH, VF, a common stamp is included, C.v. $350, Est. $150-$200 (Image)