The Jewish Theological Seminary, JTS, is the primary educational and religious center of Conservative Judaism. The single largest physical addition to JTS came in the form of seventeen-foot wrought iron gates. The beautifully constructed gates led to the main entrance through a large vaulted passageway to the entire group of buildings. In a 1930s guidebook, it is written about the Seminary, "Be sure to notice the main gate to the seminary as you go in. It is hand-wrought iron and the whole design is symbolic." These gates were presented on September 26, 1934, by Mrs. Frieda and Mr. Felix M. Warburg in memory of her parents, Jacob H. and Therese Schiff.