stylistic:tone
Duplicating

One type of specialized lathe is duplicating or copying lathe. Some types of them are known as Blanchard lathe, after Thomas Blanchard. This type of lathe was able to create shapes identical to a standard pattern and it revolutionized the process of gun stock making in the 1820s when it was invented.

The Hermitage Museum, Russia displays the copying lathe for ornamental turning: making medals and guilloche patterns, designed by Andrey Nartov, 1721.