contains air-conditioning vents, as well as a suspended truss. Other interior spaces The dressing rooms are separated from the stages of each theater by a heavy fireproof wall. The two theaters are separated from each other by a wall. A gift shop called One Shubert Alley opened between the Shubert and Booth theaters in 1979, within three of the Booth's former dressing rooms. The emergency exits of both theaters were composed of "fire- and smoke-proof towers" rather than exterior fire escapes. Shubert offices The top two stories were designed as offices for the Shuberts. Lee Shubert had a circular office on the third floor, facing the street, which he occupied until his death in 1953. His younger brother Jacob J. Shubert, also known as J. J., had a three-room office in the rear of the third floor. Lee often referred to the third and fourth stories as "my offices", implying J. J.'s subordinate position in the firm. There were also offices for casting directors, secretaries, and telephone operators; a kitchen and dining room; a bedroom; and a bathroom. The Shubert offices had a large safe for storing money, in the days when the theatrical industry operated mainly as a cash business, though this was subsequently converted to a storage area for drinks. By 1926, when Lee and J. J.'s relationship became strained, J. J. had moved to Sardi's restaurant, while Lee remained atop the Shubert Theatre. Following Lee's death, his office was occupied by his nephew Milton Shubert, who quit in 1954 after an acrimonious dispute with J. J. regarding who should lead the Shubert family's theaters. The law firm of Schoenfeld & Jacobs, headed by Gerald Schoenfeld and Bernard B. Jacobs, occupied the Shubert Theater offices for free in the 1970s. Jacobs occupied Lee Shubert's suite until his death in 1996. For several decades, producer Alexander H. Cohen also had offices in the Shubert Theatre and was known as the "third Shubert", despite conflicting with Jacobs and Schoenfeld over rent in the mid-1980s. By the theater's 100th anniversary in 2013, Lee's former dining room had been divided into offices for Shubert president Robert E. Wankel and chairman Philip J. Smith. History Times Square became the epicenter for large-scale theater productions between 1900 and the Great Depression. Manhattan's theater district had begun to shift from Union Square and Madison Square during the first decade of the 20th century. From 1901