Maps

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"Profile of the Lowe Part of the Croton Aqueduct" 1843 NYPL map collection
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Profile of the 12 Avenues in the City of New York from 24th to 161th Streets, compiled by G. Hayward for D.T. Valentines Manual 1850
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"The Route of the New Aqueduct" 1884 NYPL map collection
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