1847, Franklin 5c. red-brown, fresh color, close to good margins, tied by blue grid with matching cds. “WORCESTER FEB 27” alongside to folded letter to Boston, very fine and attractive

1847, Franklin 5c. red-brown on blued paper, fresh color, good margins on three sides, 4mm right sheet margin, tied by red grid to folded lettersheet with adjacent red “NEW YORK AUG 19” to Norwich, very fine and attractive, certificate Jakubek BPP (1989)

1851/57, Washington 12 c. black, horizontal pair, with long pre-cut, almost parting the stamps, tied by cds. “BRISTOL R.I. JAN 12” to buff envelope with red tax mark "3" via London to Birmingham with arrival mark, stamps touched due to pre-cut, envelope with transportation wear including partially missing backflap, an interesting and attractive entire

1930, Zeppelin 65 c.-2,60 $ with first day cancel "WASHINGTON APR 19 1930" to round flight cover. Somewhat toned overall. Very rare. Philatelic Foundation certificate (1996)

1930, Zeppelin 65 c.-2,60 on postcard and 2 covers of the  Pan-America flight, some usual transportation marks 

1932, Lake Placid winter games 2 c., die proof on india on sunken card, very fine and rare

Olympic issue 3 c., the unique large die trial color proof in unissued colour carmine, on India paper, on sunken card, black control number "70020" on reverse. Very fine and choice. From the collection of John Eissler, who was the engraver of the vignette. (Scott 718TC1a)
Provenance: Robert A.Siegel 'Rarities of the world' (2009)

Boston, Massachusetts, Hill's Post, , 1849, 1c black on rose, large margins all around, used on folded letterwith adjacent red “Boston 10 Cts / 18 / Oct”, to Cincinnati, Ohio. A rare and fine franking. Only seven covers have been recorded, all but one of which have the adhesive untied. Philatelic Foundation certificate (2023 ) (Scott 81L1)

Philadelphia Telegraph Despatch Post Office, 1848, 1c black on yellowish paper, ample to large margins, cancelled with black manuscript "X", on letter sheet to Washington D.C., with adjacent blue "Philadelphia 5cts" c.d.s. Stamp with slight scuffing in th emargins and cover slightly soiled. Certificate Philatelic Foundation (2021) (Scott 138L1) 

New York, Messenkope's Union Square Post Office, 1849, (2c) black on pink, margins clear of outer oval on three sides, used on cover to Amos Street, with partial enclosure dated July 5, 1850, from the Manhattan Gas & Light Company. The cover with tears and the adhesive faulty. An extremely rare franking, with George B. Sloane guarantee signature on reverse, sent during the early period following the takeover of the company by Joseph E....

Adams & C o Express, J.M. Freeman, Agent, Panama, scalloped handstamp struck on stampless cover to a passenger on board the steamer "Columbus" at "Panama or Tobago", piece torn from reverse due to rough opening, yet a fine example of this scarce marking.

Bradway's Despatch, Millville, New Jersey, undenominated, margins touching to clear, affixed to small embossed cover, cancelled in manuscript, used in conjunction with 3c dull red, tied by Millville N.J. c.d.s. (15 Jan), to Phoenix, Rhode Island, some peripheral edge toning of no importance given the cover's great rarity, the earliest of only four examples recorded by Lyons.