 Major changes included replacing the Top of the Sixes restaurant with the Grand Havana Room, a cigar bar private club.In 1991, Mutual of America left in the building to move to 320 Park Avenue.In March 1995, law firm Orrick, Herrington & Sutcliffe, previously at 599 Lexington Avenue, signed a lease for of space on the buildings 17th through 20th floors after Bertelsmann left the space for their new headquarters at 1540 Broadway.