Subject: Gunpowder. Extract from report on Gunpowder - Relative to its manufacture- experiments on Marlboro Downs. 1. Including 1. Table of results of gunpowder performance trials at Marlborough Downs 1809/10. 2. Extract from Winters p25 listing companies and results.
Description: Gunpowder. Extract from report on Gunpowder - Relative to its manufacture- experiments on Marlboro Downs. 1. Including 1. Table of results of gunpowder performance trials at Marlborough Downs 1809/10. 2. Extract from Winters p25 listing companies and results.
