Consists primarily of correspondence and legal papers relating to the financial affairs of Orson Welles and the Mercury Theatre as handled by Welles's personal attorney, L. Arnold Weissberger. Includes copies of contracts and agreements between Welles and Columbia Artists as his representative, between Welles and RKO, other legal documents relating to Mercury Theatre insurance policies for both Orson and Virginia Welles and photographs, mostly of theatre productions and performers.