Subject: Biderman, A. Notes on Royal Gunpowder Factory Waltham Abbey. (Lammot du Pont papers. Re the process of gunpowder manufacturing at Waltham Abbey as he saw it during his visit in 1838)
Description: Biderman, A. Notes on Royal Gunpowder Factory Waltham Abbey. (Lammot du Pont papers. Re the process of gunpowder manufacturing at Waltham Abbey as he saw it during his visit in 1838)
