Wool felt workshop with Wendy Williams at KimzSewing (Australia). The benefits of using wool felt for applique is that it is easy to cut to your applique shape. It does not fray or unravel so you don't need to finish all the edges.
Circa 1870 Whight & Mann's famous lockstitch, the Prima Donna, was sold in both hand and treadle forms. The treadle itself was a dedicated design of real beauty and elegance. Today it is a rare item, and highly sought after.