Hudson River Tubes
Author: Hudson and Manhattan Railroad Company.
Scale: not given
Originally published by Hudson & Manhattan R.R. in 1909. Reprinted with commentary by John Landers in 1997. Map reprints available separately.
LOC call no.: G3804.N4:2M3P33 1909.H8 1997
more information available from Penn State University; Donald W. Hamer Maps Library