Improved hydrostatic beds, or, Invalid mattresses and cushions for placing on an ordinary bedstead
A trade catalogue published in London in 1856 by William Hooper, advertising improved water-filled mattresses and cushions that sit on an ordinary bedstead for invalids. The engravings show a patient lying supine on the mattress, some with a pillow and a lettered diagram, and a designer might take from them the plain, flat cross-section style of Victorian medical trade illustration, with its clear figure outlines, hatched shading on bedding, and lettered callouts.
