"A wax jack (wax-jack, taper-jack) is a device used to hold a taper of sealing wax intended to create sealings on documents.
The wax jack was first ...
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introduced in 1700. Before that time a simple taper was used in a loose ball. Despite the resemblance to a candle, they were not used for illumination. Although common in England and Europe, they were not used much in North America.
Most early wax jacks were worked by silversmiths, although later models also exist in other metals such as iron, brass or bell metal." - (en.wikipedia.org 27.11.2023)