Letters and memos regarding 1930 European Tour of the New York Philharmonic under Arturo Toscanini; ALS-Walter Toscanini; LS-Walter Toscanini; LS- Clarence H. Mackay; LS-Anita Colombo; Documents and schedules regarding proposed 1930 European tour; Insurance; Budget and Financing for Europeaan Tour; ALS-Sam Bottenheim; Attempts to get Ernest Schelling to conduct Children's Concerts during propsed European tour; Travel asnd financial arrangements for European tour; Letter of 17 July 1929 from Arthur Judson to Willem Mengelberg explaining that it will not be possible for Mengelberg to conduct the Philharmonic in Europe in the spring of 1930 for financial reasons; Tour arrangements to be handled by Anita Columbo, secretary to Arturo Toscanini; Press coverage of upcoming 1930 European Tour