An 18th-century Philosophical Transactions article by Cromwell Mortimer describing J. C. Le Blon's method of printing in natural colours from three plates using red, yellow and blue, and its extension to weaving tapestry on a draw loom. It contrasts the traditional flat (low-warp) and upright (high-warp) tapestry methods at Brussels and the Gobelins with Le Blon's loom-woven approach, which a common draft-weaver and draw-boy could carry out much faster and more cheaply. It also describes the mounting of the loom with rings (males), lingoes, packthreads, simples and potlarts guided by a squared pattern.