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Original file (988 × 679 pixels, file size: 446 KB, MIME type: image/png)

Summary

Description
English: Excerpt of HAER PA,51-PHILA,712B-6 with annotation of Frankford Junction High Tension Switch.
Date
Source

HAER PA,51-PHILA,712B-6

image extraction process
This file has been extracted from another file
: View north of load dispatch model board; section covers substations from metuchen (right) to Frankford junction (left). - Thirtieth Street Station, Load Dispatch Center, HAER PA,51-PHILA,712B-6.tif
original file
Author Robert Stewart

Licensing

Public domain
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

File history

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Date/TimeThumbnailDimensionsUserComment
current05:55, 27 May 2011Thumbnail for version as of 05:55, 27 May 2011988 × 679 (446 KB)Mcg410Excerpt of HAER PA,51-PHILA,712B-6 with annotation of Frankford Junction High Tension Switch. ~~~~

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