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1910 Street Level (now occupied by Madison Square Garden and One Penn Plaza)
Source: White, Samuel G. and Elizabeth White. McKim, Mead, and White: The Masterworks. New York: Rizzoli International Publications, Inc, 2003. Print.
1910 Concourse Level (now the "Upper Level")
Collection: Avery Architectural and Fine Arts Library, Columbia University
Source: Ballon, Hilary. New York's Pennsylvania Stations. New York: W.W. Norman and Company, Inc, 2002. Print.
Exit Concourse Level (now the "Lower Level")
Source: Ballon, Hilary. New York's Pennsylvania Stations. New York: W.W. Norman and Company, Inc, 2002. Print.
