Subject: Emails from Jamestown Cooperage detailing evidence given by Maj Wm Congreve to Commissioners of Public Accounts March 5th, 16th, 22nd 1784, detailing 1. Method for proof of gunpowder at Purfleet. 2. Barrel marking for proved gunpowder
Description: Emails from Jamestown Cooperage detailing evidence given by Maj Wm Congreve to Commissioners of Public Accounts March 5th, 16th, 22nd 1784, detailing 1. Method for proof of gunpowder at Purfleet. 2. Barrel marking for proved gunpowder
