Subject: Mechanics No XXII Gunpowder Mill. Transactions of the Society of Arts, Vol 37 pp161-167. Plate 30 photocopy Correspondence re silver medal to James Monk for design of gp mill with drenching apparatus
Description: Mechanics No XXII Gunpowder Mill. Transactions of the Society of Arts, Vol 37 pp161-167. Plate 30 photocopy Correspondence re silver medal to James Monk for design of gp mill with drenching apparatus
