Copying press

a machine for taking by pressure, an exact copy of letters, etc., written in copying ink.

See also: Copying

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Six years earlier James Watt invented the copying press - which proved useful for the mass of letters he was producing.
Six years earlier Watt invented copying press - which proved useful for the mass of letters he was producing.
Some of the leather-bound books from the time of the Lunar Society were on display in the study, along with an early copying press made by James Watt.
The Watt's Roller copying press for letters; James Keir (left) and how the Bloomsmithy Mill site in Tipton looked (above)
So articles such as James Watt's copying press, a square sundial and a perpetual almanac are complemented by a modern version of the static electricity generator,which visitors can crank up to produce a spark which jumps between two brass knobs; convex distorting mirrors, gravity wells and colour/light tables.