1. MS Mus. 1813/2/1/73/3 Reference (shelfmark): MS Mus. 1813/2/1/73/3 Title: Mechanical Copyright Protection Society Scope & Content: Correspondence to or from the Mechanical-Copyright Protection Society Ltd. This file was originally entitled 'M.C.P.S. 1958' and held in a packet marked 'Dr. Roth, J-Q'. Collection Area: Music Collections Languages: English Date Range: 1957-1958 Extent: 1 sub-file