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File:INTERIOR DETAIL, FIRST STORY, SHOWING RELAY RACKS - Baltimore and Potomac Interlocking Tower, Adjacent to AMTRAK railroad tracks in block bounded by Howard Street, Jones Falls HAER MD,4-BALT,189-10.tif

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Photographer
James DuSel, P.A.C. Spero & Co.
Title
INTERIOR DETAIL, FIRST STORY, SHOWING RELAY RACKS - Baltimore and Potomac Interlocking Tower, Adjacent to AMTRAK railroad tracks in block bounded by Howard Street, Jones Falls Expressway, Maryland Avenue and Falls Road, Baltimore, Independent City, MD
Depicted place Maryland; Independent City; Baltimore
Date August 1993
date QS:P571,+1993-08-00T00:00:00Z/10
Dimensions 4 x 5 in.
Current location
Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA
Accession number
HAER MD,4-BALT,189-10
Credit line
This file comes from the Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER) or Historic American Landscapes Survey (HALS). These are programs of the National Park Service established for the purpose of documenting historic places. Records consist of measured drawings, archival photographs, and written reports.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

Notes
  • Significance: The tower is part of the Baltimore's Pennsylvania Station terminal complex, which represented the peak of the Pennsylvania Railroad Company's development in Baltimore. The tower's design, construction, and associated machinery are representative of railroad engineering practices and interlocking signal technology in the early twentieth century.
  • Survey number: HAER MD-163
Source
This image is available from the United States Library of Congress's Prints and Photographs division
under the digital ID hhh.md1386/photos.320098p.
This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

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Permission
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Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.

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current20:00, 28 July 2014Thumbnail for version as of 20:00, 28 July 20144,077 × 5,000 (19.44 MB)Fæ (talk | contribs)GWToolset: Creating mediafile for Fæ. HABS 21 July 2014 (1601:1800)

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