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History
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Chaining numbers can be seen on the black pillars in the middle of the tracks of West Fourth Street–Washington Square.
Chaining numbers can be seen on the black pillars in the middle of the tracks of West Fourth Street–Washington Square.
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The chain is based on the length of Gunter's chain, which is 66 feet (22 yd) long.
The chain is based on the length of Gunter's chain, which is 66 feet (22 yd) long.