What is a Swiss Waist, and how does it differ from a corset? Nikki Swift, corsetiere and stalwart of Foundations Revealed, explains it all.
Finally, Mrs. Pretty's 1915 velvet-trimmed ensemble is complete with her classic teens tailored skirt and jacket, and spectacular hat.
In part two, Polly looks at the development of fabrics, dyes and fastenings, and when they became part of popular fashion.