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 the Culture of silk in Pennsylvania, having purchased in the course of the last Season and procured to be reeled at the Filature erected here such a quantity of Cocoons as have produced about 155 lbs. of raw Silk proper for Exportation, are encouraged from your known Partiality to the productions of...