1To Benjamin Franklin from Valltravers, 14 October 1778 (Franklin Papers)
ALS : American Philosophical Society Apprehensive, by Your Excellency’s Silence to my last...
2To Benjamin Franklin from Valltravers, 21 September 1777 (Franklin Papers)
ALS : American Philosophical Society The Republicks of Switzerland have been treated with the...
3To Benjamin Franklin from Johann Rodolph Valltravers, 23 December 1778 (Franklin Papers)
ALS : American Philosophical Society I lose no Time, in transmitting the inclosed Memorial &...
4To 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...
5To Benjamin Franklin from Valltravers, 17 May 1778 (Franklin Papers)
ALS : American Philosophical Society Uncertain, as I am, of the Fate of my Letters to Your...
6To Benjamin Franklin from Rodolphe Valltravers, 6 February 1767 (Franklin Papers)
AL : American Philosophical Society Mr. Valltravers’s best Respects wait on Dr. Franklin, and...
7To Benjamin Franklin from Valltravers, 15 January 1778 (Franklin Papers)
ALS : American Philosophical Society My Letter of the 10th. instant mentioned a Book, which I...
8To Benjamin Franklin from Rodolphe Valltravers, 2 July 1777 (Franklin Papers)
ALS : American Philosophical Society Rodh. Valltravers has called, to pay his Respects to the...
9To Benjamin Franklin from Valltravers, 4 December 1777 (Franklin Papers)
ALS : American Philosophical Society These Lines will be conveyed to you by the Elector...
10To 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...