File:Insertion of plug and bridge wire into electric blasting caps 2012 017 b2f37 8623hz26t.tiff

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Summary

Insertion of plug and bridge wire into electric blasting caps   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
Author
Hercules Incorporated
Photographer
O'Neill, James J.
Title
Insertion of plug and bridge wire into electric blasting caps
Description
English: General view of employee Emily Port inserting plugs and bridge wires into the shells of electric blasting caps manufactured at the Hercules Powder Company plant in Port Ewen, New York. Formed in 1912 as part of an anti-trust settlement with DuPont, the Hercules Powder Company (later Hercules Inc.) specialized in the manufacture of explosives and smokeless powders. The company's Port Ewen plant produced a range of special detonators designed for military use, as well as construction jobs that required blasts of dynamite, such as the clearing of quarries, mines, and tunnels. Published without a copyright notice in the March 1955 edition of the Hercules Mixer.
Depicted people Depicted person: Emily Port
Date 1955
date QS:P571,+1955-00-00T00:00:00Z/9
institution QS:P195,Q5090408
Notes Image downloaded with permission from the Science History Institute, as part of the Wikipedian in Residence initiative.
Source https://digital.sciencehistory.org/works/fx719m90m
Permission
(Reusing this file)
This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

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Date/TimeThumbnailDimensionsUserComment
current16:38, 30 September 2019Thumbnail for version as of 16:38, 30 September 20193,070 × 3,935 (46.09 MB)Mary Mark Ockerbloom{{Information |Description= |Source= |Date= |Author= |Permission= |other_versions=== {{int:filedesc}} == {{Photograph |photographer = O'Neill, James J. |author = Hercules Incorporated |title = Insertion of plug and bridge wire into electric blasting caps |description ={{en|1= General view of employee Emily Port inserting plugs and bridge wires into the shells of electric blasting caps manufactured at the Hercules Powder Company plant in Port Ewen, New York. Formed in 1912 as part of an...
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