Edited April 23, 2021 Today I have something special to add to the research on period methods of adding skirt fullness in the mid-1890s. A length of antique, unused "Skirtbone" produced by the Warren Featherbone Company of Three Elms, Michigan. At just a quarter of an inch wide and about 1/16 inch thick (NOT 1/32" as I have it in the video), it's a springy, sproingy boning. It weighs, well, a feather, and you'd not notice any additional weight in your skirt, I believe. To understand it, you…