1To Benjamin Franklin from Beccaria: résumé, 16 December 1779 (Franklin Papers)
ALS and copy: American Philosophical Society; four drafts: American Philosophical Society <Turin,...
2To Benjamin Franklin from Giambatista Beccaria: résumé, 17 November 1780 (Franklin Papers)
ALS : American Philosophical Society <Turin, November 17, 1780, in Italian: Encouraged by your...