Crinoline frame, English, late 1860's. W. S. Thomson, an American, patented the crinoline frame in USA, Britain & France in 1856. It was adopted by all classes, the quality, of course, varying. At its height of popularity, half a million hoops were produced from Sheffield, England steel mills. Before this date, women would have worn up to six starched petticoats to achieve the big skirt effect. Label: "Thomson's Prize Medal Skirt. By Her Majesty's Royal Patent Registered Trade Mark 20"