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File:Jock Herd in Ditton Park radio van.jpg

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Summary

Description
English: Jock Herd operates some of the radio receiver equipment in the Radio Research Section's Morris van. This van was later used in the Daventry Experiment which demonstrated that aircraft effected radio transmissions, and led to the creation of radar in the UK.
Date
Source email from Brian Leathley-Andrew
Author Arnold Wilkins

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This UK artistic or literary work, of which the author is unknown and cannot be ascertained by reasonable enquiry, is in the public domain because it is one of the following:
  • A photograph, which has never previously been made available to the public (e.g. by publication or display at an exhibition) and which was taken more than 70 years ago (before 1 January 1955); or
  • A photograph, which was made available to the public (e.g. by publication or display at an exhibition) more than 70 years ago (before 1 January 1955); or
  • An artistic work other than a photograph (e.g. a painting), or a literary work, which was made available to the public (e.g. by publication or display at an exhibition) more than 70 years ago (before 1 January 1955).

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This work is in the public domain in the United States because it was published in the United States between 1930 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
current20:26, 25 March 2024Thumbnail for version as of 20:26, 25 March 2024872 × 1,177 (556 KB)HohumBrighten
23:00, 1 June 2015Thumbnail for version as of 23:00, 1 June 2015872 × 1,177 (391 KB)Maury MarkowitzCropped to image only.
22:59, 1 June 2015Thumbnail for version as of 22:59, 1 June 20151,350 × 1,200 (653 KB)Maury MarkowitzUser created page with UploadWizard

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