1To Benjamin Franklin from the Managers of the Philadelphia Silk Filature to Franklin and John Fothergill, 8 November … (Franklin Papers)
LS : American Philosophical Society The Subscribers Managers of the Contributions for promoting...
2To Benjamin Franklin from a Committee of the Managers of the Philadelphia Silk Filature, 17 November 1772 (Franklin Papers)
LS : American Philosophical Society The new Elected Managers of the Filature met last Evening...