became established on Broad Street in the mid-1800s, growing in part out of the Open Board of Brokers, previously in a building on New Street established in 1864. The Open Board was located at 16 and 18 Broad Street until 1869. After the Open Board joined the Consolidated Exchange, Open Board members specializing in unlisted stocks were left without "a roof over their heads and took to meeting casually in the course of the day in convenient lobbies in the [financial] district". In August 1865, a reporter described the curb market in front of the new exchange building on Broad Street. "There were at least a thousand people on the sidewalk and street... Buyer and seller, speculator and investor, operator and spectator, agent and principal, met face to face, upon the curb and beneath the sweltering sun, opened their mouths wide and screamed all manner of seeming nonsense at each other, while their hats tipped far toward the small of their backs, their eyes strained fiercely and their arms waved wildly above their heads, from which rolled rivers of profuse perspiration." In 1877, a new organization the New-York Open Board of Stock Brokers commissioned the same building at 16 and 18 Broad Street used by the old Open Board. The Mills Building was completed in 1882 as a 10-story structure that stood at 15 Broad Street and Exchange Place, with an L to 35 Wall Street. It adjoined the building that was the home of Equitable Trust Company. It also adjoined the J. P. Morgan & Company Building on both Broad and Wall streets. The curb brokers were ousted by a number of buildings as their numbers grew, until they ended up in front of the Mills Building entrance on Broad Street. The Mills building would be replaced by the Equitable Trust Building skyscraper in 1928. The Stock Exchange Luncheon Club was a members-only dining club of the New York Stock Exchange (NYSE) founded on August 3, 1898 at 70 Broadway. It moved to the New York Stock Exchange Building at 11 Wall Street in 1903. 1900–1921: Curb market boom The Broad Exchange Building at 25 Broad Street was built in 1900 to provide office space for financial companies including Paine Webber. At the time of its completion it was the largest office building in Manhattan. In 1903, NYSE moved into new quarters at 18 Broad Street, between the corners