The New York Central's five Shay B-60-2 locomotives, for street-running service in New York City in 1923, were encased in full metal shrouds, from the wheels to the roof.

The above photograph of No. 1897 with its casing partially removed offers a rare glimpse of the specialized geared machinery hidden within its urban armor.

a critical safety and practical requirement for operating amidst pedestrians and street traffic, containing the moving machinery and reducing the risk of frightening horses or causing accidents.

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https://justacarguy.blogspot.com/2021/06/1915-hudson-street-and-laight-street-st.html