US Patent No. 320,709, granted June 23, 1885 to Edward W. Serrell Jr. (temporarily living at Chabeuil, Drôme, France), for an improved cocoon holder for silk-reeling machines. It replaces the one-piece circular magazine with sectional magazines, so an emptied half can be lifted off and replaced with a full one without stopping the machine. The patent has a drawing sheet (side elevation and plan view) and a specification with two claims.