Mardsen Lays, Waxed Tracing Paper

Another very valuable help towards the speedy output are the Mardsen lays. These consist of pattern outlines marked on to a glazed paper, after which they are perforated. Powder is applied to the lay, with the result that on the removal of the lay marked-out garments remain on the cloth.

• The Modern Tailor, Outfitter, and Clothier Vol. 2 (1928), Chapter 1: "The Wholesale Trade," by G.W. Sumpter, p. 3

This might be similar to the technique demonstrated in this video, "How to Use Tracing Wheels and Waxed Tracing Paper for Garment Making," by Bias Bespoke: https://youtu.be/H3ZhdfrCkTQ