Original papers of the Musical Society of the City of New York: bankbooks with American Exchange National Bank, 5 July 1922 to 16 May 1923; Original correspondence, advertising bills, concert hall rental agreements, artist contracts, letters of agreement, 1922-23 audit, and miscellaneous business and legal papers of Musical Society of the City of New York (City Symphony Orchestra); Approval of merger with the Philharmonic Society of New York, May 1923