1To George Washington from Rodolph Valltravers, 21 July 1791 (Washington Papers)
Copy. No. 1 ⟨ illegible ⟩ May it please Yr Excellcy! Sir! Roterdam, July 21. 91. Humbly flattering myself with your safe & kind Reception of my Letter & Packet dated from Hamburg, the 15th of March, & conveyed by Captn Bell of Philadelphia, with Maps, & several Memoirs (No. 2.) collected for the Use of yr assiduous Surveyor & Geometer, John Churchman of Philadelphia; and, under Yr Excce’s...