File:Extron Lifescreen Projection System - Build your own big screen color tv - October 1977 Popular Electronics advert.jpg

From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Original file ‎(3,030 × 3,088 pixels, file size: 2.65 MB, MIME type: image/jpeg)

Captions

Captions

Add a one-line explanation of what this file represents

Summary[edit]

Description
English: 1977 advertisement from Popular Electronics by Extron for their Lifescreen Projection System.
Date
Source Scanned from a October 1977 issue of Popular Electronics, uploaded to the Internet Archive by s27374 at https://archive.org/details/197710PopularElectronics/page/n77/mode/2up
Author Extron Lifescreen Projection System
Permission
(Reusing this file)

This advertisement did not have a copyright notice and is in the public domain. From the US Copyright Office Circular 3. Page 3, Contributions to Collective Works. (A magazine is a "collective work.")

A notice for the collective work will not serve as the notice for advertisements inserted on behalf of persons other than the copyright owner of the collective work. These advertisements should each bear a separate notice in the name of the copyright owner of the advertisement.

Licensing[edit]

This image is in the public domain because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason:
Public domain This advertisement (or image from an advertisement) is in the public domain because it was published in a collective work (such as a periodical issue) in the United States between 1929 and 1977 and without a copyright notice specific to the advertisement. Unless its author has been dead for several years, it is copyrighted in jurisdictions that do not apply the rule of the shorter term for US works, 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. See this page for further explanation.

This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as when the enhancements are clear but insufficient. For known raw unenhanced scans you can use an appropriate {{PD-old}} tag instead. For usage, see Commons:When to use the PD-scan tag.

Note: This tag applies to scans and photocopies only. For photographs of public domain originals taken from afar, {{PD-Art}} may be applicable. See Commons:When to use the PD-Art tag.

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current23:53, 24 February 2024Thumbnail for version as of 23:53, 24 February 20243,030 × 3,088 (2.65 MB)Suspiciouscelery (talk | contribs)Uploaded a work by Extron Lifescreen Projection System from Scanned from a October 1977 issue of Popular Electronics, uploaded to the Internet Archive by s27374 at https://archive.org/details/197710PopularElectronics/page/n77/mode/2up with UploadWizard

You cannot overwrite this file.

There are no pages that use this file.

Retrieved from "https://commons.wikimedia.org/w/index.php?title=File:Extron_Lifescreen_Projection_System_-_Build_your_own_big_screen_color_tv_-_October_1977_Popular_Electronics_advert.jpg&oldid=857177174"