Scope and content Original manuscript contract between James Grosett and John Newbery for the latter to manufacture "Lisbon or German Doctor's Diet Drink, The Unguento de Cao, The Angola Ptisan" from Grosett's recipes, exclusively. Provisions are made for ensuring secrecy and for handing over the recipes to successors. On vellum, 19.5 x 28", with revenue stamps, seals, and ribbons. Signed by Grosett and Newbery, and, as witnesses, Thomas Carnan, Newbery's partner and Shaw Grosett. Inscribed on verso...