RR Auction Quality Autograph Auction 385

American engineer (1866–1945) who developed the first submarine to operate successfully on the open seas. Eight Milford Trust Company checks, each mea

New Hampshire politician (1741–1819) and signer of the Constitution. Florid ALS, one page, 8 x 6.5, June 11, 1806. “Gentlemen of the Senate and Gentle

Connecticut state treasurer from 1769 to 1789. Manuscript check, 8 x 3, filled out and signed by Lawrence, “John Lawrence, Esq., Treasurer,” payable t

French mathematician who specialized in celestial mechanics (1811–1877) best known for his part in the discovery of Neptune. ALS in French, signed “Ub

ALS in French, signed “Ferd. deLesseps,” one page, 5.25 x 8, no date, but 1884. Letter to Louis Pasteur, whom he addresses as “My dear friend and coll

ALS in French, signed “Maintenon,” one page both sides, 6.5 x 9, August 6, 1712. Madame de Vertrieux, Mother Superior of the Dames de la Maison Royale

ADS in Italian on three sides of two 4.25 x 5.5 cards. Marconi provides a brief synopsis of his development of the radio telegraph, in full: “1901 1

Nobel Prize–winning, Italian-born engineer (1874–1937) who developed ‘wireless telegraphy,’ better known to the world at large as radio. Original Play

Nine items: five TLSs, each measuring approximately 8.5 x 11, all dated from 1909 through 1918, and all on personal Maxim Park, New Jersey letterhead.

Scottish engineer and road builder (1756–1836). Rare ALS signed “Jn Loudon McAdam,” three pages on two adjoining sheets, 4 x 6.25, December 30, 1819.