1historical, rare A device for holding the hands in the correct position when playing the piano or similar keyboard instrument.
Apparently only with reference to that devised by Col. Peter Hawker, patented in 1820, which was strapped to the wrist and attached to the edge of the keyboard by means of a slidable clamp.
2A small mould used in manufacturing or producing something by hand.
Early 19th century; earliest use found in Peter Hawker (1786–1853), army officer and writer. From hand + mould.