TLS signed “John G. Mitchell,” one page, 8.25 x 11, May 15, 1973. Letter to Nigel Morgan at Electric Lady Studios in New York. In part: “You are hereby authorized to make available for copying, transmittal, or for any other purposes, all papers, documents, contracts or any other matter…to which I have any right, to Steingarten, Wedeen and Weiss.” In fine condition. Accompanied by a certificate of authenticity from Tracks. Pre-certified REAL.