المستند
Bridge by which the South Mountain & Boston R.R. is to cross the Hudson River at Poughkeepsie, N.Y. ; The Map of South Mountain and Boston
from New illustrated atlas of Dutchess County, New York. / Compiled & drawn from personal examinations, surveys etc. under the personal supervision of O.W. Gray & Son and F.A. Davis, and published under the superintendence of H. L. Kochersperger.
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