1842 · Automatic Coin Weighing · Werk 722 von 1.871

A row of small automatic coin weighing machines of 1844 on a long oak bench in the weighing room of a bank in London, each a glass case twenty centimetres wide and seventeen high on a moulded mahogany base, frame and top plate of golden yellow brass, on each top plate a slanting open brass chute holding plain gold discs seen edge-on in a column, inside the nearest case a fine balance beam and a channel lined in red, thin leather cords running from each case up to a line shaft under the ceiling, a boy seen from behind in a waistcoat feeding a chute, even light from a skylight.
Was die Quellen offenlassen: Eine Arbeitsgeschwindigkeit nennt keine der Quellen.