Main Bl'd'g, Nave From S.W. Tower Nave, from s.w. tower-Main Building 1 silver albumen print; 21 x 26 cm. Mounted on backing board. Title on label: Main Bldg., nave from s.w. tower. Exhibit titles: Marchand, Louis Lion, Paris, Exhibit #478; Raffl & Co., Paris, Exhibit #116; Gorham Manufacturing Co., Providence, R.I., Exhibit #440; Cornelius & Sons, Phila., Pa, Exhibit #480, Main Exhibition Building, Bldg #1. Written at botton of photograph: D-584. Overview of Main Building, orchestra in center with audience seated around.