1John Bondfield to the American Commissioners, 21 November 1778: résumé (Franklin Papers)
ALS : American Philosophical Society <Bordeaux, November 21, 1778: The Inspector of Artillery visited the port yesterday to inspect M. Bertin’s cannon. On the basis of appearance alone, their quality seems good, but this must be confirmed by testing. I herewith enclose a list indicating their specifications. Other cannon belonging to the same company made from the same mold can be procured...