U.S. Historic American Engineering Record. "View west within the periphery of the load dispatch model board, operator's console and button board is in the lower left quadrant of the photograph. - Thirtieth Street Station, Load Dispatch Center, Thirtieth & Market Streets, Railroad Station, Amtrak (formerly Pennsylvania Railroad Station), Philadelphia, Philadelphia County, PA."

This image is available from the United States Library of Congress's Prints and Photographs division under the digital ID hhh.pa3881/photos.362731p. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing. العربية ∙ беларуская (тарашкевіца) ∙ বাংলা ∙ čeština ∙ Deutsch ∙ English ∙ español ∙ فارسی ∙ suomi ∙ français ∙ galego ∙ עברית ∙ magyar ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ lietuvių ∙ македонски ∙ മലയാളം ∙ Nederlands ∙ polski ∙ português ∙ português do Brasil ∙ română ∙ русский ∙ sicilianu ∙ slovenčina ∙ slovenščina ∙ Türkçe ∙ українська ∙ 简体中文 ∙ 繁體中文 ∙ +/−