Powder mill, Waltham Abbey mb-artist Dick_Williams Hilton Valentine

Hilton Valentine

Beyond is open country and on the horizon Holland House

Illustration showing a microscopic view of poppy seeds

Inscribed in pencil verso "Polla"

Front view of buildings on Aldersgate Street

Powder mill, Waltham Abbey mb-artist Dick_Williams Hilton ValentineSectional elevation for the water driven powder mill at Waltham Abbey, Essex, 1: 24 scale. From Smeaton volume 2, fol. 38v. Powder mills were used in the manufacture of blackpowder, a type of gunpowder. Smeaton was contracted in 1767 by the mill's owner, Bouchier Walton, to design improved mills. The site was purchased by the Crown in 1787 to become one of three Royal Gunpowder Mills in the UK. Original: ink on paper. 1771