for bus drivers with the Third Avenue Transit Corporation, was used during the 1950s to transport money out of the buses. It is part of the interactive "Show Me the Money: From the Turnstile to the Bank" exhibit, where visitors could "see an image of the vacuum that attaches to the fare box and sucks the coins out." Current exhibits , the museum features a number of exhibits: "Steel, Stone & Backbone: Building New York's Subways" highlights the challenges and labor involved in subway construction during the period 1900–1925. "Moving the Millions" chronicles the history of the subway system from the private operators to the MTA New York City Transit of today. Located on the platform level, it is designed to supplement a visitor's experience exploring the various subway cars on display in the museum. "Fare Collection" explains different methods New Yorkers have used to pay subway fare over the years, and displays authentic subway turnstiles which visitors can traverse. In addition, there is a small display of the various token designs that were used in the past before they were completely discontinued. "On the Streets" exhibits a comprehensive history of New York City's street transportation (horsecars, cable cars, streetcars, buses, etc.), as well as two bus installations visitors can sit in, including the driver's seat. "Clearing the Air" discusses modern street transportation and its impact on the environment, and highlights steps that the MTA is taking to reduce its carbon footprint. "Stop Look and Listen" allows visitors to enter a working subway signal tower dating from 1936, to see how trains are kept a safe distance apart and supervised. "Bringing Back The City: Mass Transit Responds To Crisis" explains planning and emergency services, and their role in preventing or recovering from service disruptions. "No Spitting on the Platform" displays historic way-finding and etiquette signage. "Dr. George T.F. Rahilly Trolley and Bus Study Center" displays over 50 scale models of streetcars and work cars, with a focus on Brooklyn. Turnstiles and fare collection Various turnstiles from the history of subways are on display at the New York Transit Museum. They date as far back as the subway's opening in 1904, up through turnstiles that were still in use as recently as 2003. The exhibit includes many different types of turnstiles, including turnstiles used during the 1939 New York World's Fair that were designed to require passengers to pay a special