1851 1c blue, type II, blue cancel, huge margins all around, a beautiful stamp, with 2016 PFC graded "XF-S 95" (SMQ $750) (Cat No. 7) (Image)

Est.$300

1851 1c blue, se-tenant horizontal strip of three, left stamp type IIIA, other two type II, tied by U.S. Express Mail NY cancels on FL to Providence, R.I., ample margins to just touching at top, fine and rare combination cover, with 2012 Weiss certificate (Cat No. 7,8A) (Image)

Est.$500

1851 1c blue (type III), 3c dull red and a horizontal pair of 10c green (type III), used on 1857 cover from Boston to London, tied by black Boston (Jun 17) cds and red London "Paid" postmark, full to large margins all around including parts of adjoining stamps, scissors cut between stamps (10c), minor cover flaws mentioned for accuracy only. A fine three color franking to England, signed Ashbrook, with 1989 PFC (Cat No. 8,11,15) (Image)

Est.$2,500

1851 1c blue, horizontal strip of five, positions 51R-55R, margins all around, small nick at top, minor tears and other small faults, fine appearance, signed Molesworth (Cat No. 9) (Image)

Est.$750

1851 1c blue, type IV, horizontal strip of three, pos. 82-84L1L, full to clear margins all around, used on cover from Boston to Randolph, MA, filing fold at top, otherwise fine (Cat No. 9) (Image)

Est.$150

1851 5c brown, ample margins, just touching at right, brilliant color, tied by New Orleans cds on complete FL sent in 1856 via New York to France, London, Paris a Bordeaux transits and Nantes arrival pmks, charged "19" (decimes), fine cover (Cat No. 12) (Image)

Est.$250

1851 5c red brown, large margins all around, with portions of adjoining stamps at top and bottom, rich color and v.f., tied by New Orleans cds on cover sent in 1856 via New York to France, with boxed "GB 1F60c" accountancy and charged "8" (decimes) on front, also "Etats-Unis Paq. Brit. A. Calais. M", London transit and Nimes arrival pmks on back, fine cover, ex-Walter Klein collection (Cat No. 12) (Image)

Est.$500

1851 5c red brown, large margins all around, deep color and v.f., tied by New Orleans cds on FL sent in 1857 via Boston to France, with boxed "GB 1F60c" accountancy and charged "16" (decimes) on front, also "Ang. Amb. Calais", Boston and London transits and Paris arrival pmks on back, fine cover (Cat No. 12) (Image)

Est.$500

1851 10c green, type II, large even margins all around, beautiful color, v.f., tied by San Francisco cds on cover to Washington City, D.C., backflap faults, otherwise a trans-continental cover, cat. $200 (Cat No. 14) (Image)

Cat. $200, Est.$200

1851 10c green, type II, horizontal pair, margins all around, nice color, canceled by pen and tied by blue Wiscasset, Me, Jan 28 cds on cover used in 1856 to France, left stamp extending slightly over the edge of cover, minute marginal crease, otherwise v.f., with Boston transit and Le Havre arrival pmks (Cat No. 14) (Image)

Est.$350

1851 10c green, type III, margins all around, deep color, v.f., tied by Danville cds on cover to San Jose, California, with 1982 SPA certificate, cat. $200 (Cat No. 15) (Image)

Cat. $200, Est.$150

1851 10c green, type II, margins all around, nice color, v.f., tied by San Francisco cds on cover to Wilmington, Delaware, with 1991 Alex Rendon certificate, cat. $200 (Cat No. 15) (Image)

Cat. $200, Est.$150

1851 10c green, type II, horizontal strip of three, large margins all around, nice color, v.f., tied by New Orleans cds on cover via New York to Hamburg, boxed "Aachen 20/5 Franco", in red, additional arrival pmk on back, wax seal removed, nice cover (Cat No. 15) (Image)

Est.$500

1851 12c black, horizontal pair, light black cancels, full margins to barely touching at upper left, left stamp thin and with creases, right stamp sound and v.f., with 2016 PFC, cat. $575 (Cat No. 17) (Image)

Cat. $575, Est.$150

1851 12c black, horizontal strip of three and four singles, ample margins to touching in places, cancelled on piece by overlapping New Orleans pmks, couple of minor flaws, mostly fine and impressive piece, cat. $1750 (Cat No. 17) (Image)

Cat. $1750, Est.$500