1To Benjamin Franklin from Rodolphe Valltravers, 20 March 1768 (Franklin Papers)
AL : American Philosophical Society Mr. Valltravers presents his best Respects to Dr. Franklin,...
2To Benjamin Franklin from Rodolphe Valltravers, 6 February 1767 (Franklin Papers)
AL : American Philosophical Society Mr. Valltravers’s best Respects wait on Dr. Franklin, and...
3To Benjamin Franklin from Rodolphe Valltravers, 2 July 1777 (Franklin Papers)
ALS : American Philosophical Society Rodh. Valltravers has called, to pay his Respects to the...
4To Benjamin Franklin from Rodolphe Valltravers, 25 April 1777 (Franklin Papers)
AL : American Philosophical Society Our predecessors’ introduction of Valltravers, at the time...
5To Benjamin Franklin from Johann Rodolph Valltravers, 10 November 1777 (Franklin Papers)
ALS : American Philosophical Society Just returned from a Tour thro’ the principal of our...
6To Benjamin Franklin from Johann Rodolph Valltravers, 23 December 1778 (Franklin Papers)
ALS : American Philosophical Society I lose no Time, in transmitting the inclosed Memorial &...
7To Benjamin Franklin from Johann Rodolph Valltravers, 13 March 1778 (Franklin Papers)
ALS : American Philosophical Society Uncertain of the Fate of my several Letters to Your...
8To Benjamin Franklin from Johann Rodolph Valltravers, 2 October 1782 (Franklin Papers)
ALS : American Philosophical Society None of the five Letters, which I had the Honor to write to...
9To Benjamin Franklin from Johann Rodolph Valltravers, 26 July 1778 (Franklin Papers)
ALS : American Philosophical Society Being ignorant of the Fate of my 2. last Letters, of April...
10To Benjamin Franklin from Valltravers, 14 October 1778 (Franklin Papers)
ALS : American Philosophical Society Apprehensive, by Your Excellency’s Silence to my last...