Image: Signal Hill California 1923
Description: Signal Hill oil field — Los Angeles County, California, c. 1923.
Title: Signal Hill California 1923
Credit: This image is available from the United States Library of Congress's Prints and Photographs division under the digital ID pan.6a17401. This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing for more information. العربية | čeština | Deutsch | English | español | فارسی | suomi | français | magyar | italiano | македонски | മലയാളം | Nederlands | polski | português | русский | slovenčina | slovenščina | Türkçe | українська | 中文 | 中文（简体） | 中文（繁體） | +/−
Author: The Aerograph Co.
Permission: This work is in the public domain because it was published in the United States between 1923 and 1963 and although there may or may not have been a copyright notice, the copyright was not renewed. Unless its author has been dead for the required period, it is copyrighted in the countries or areas that do not apply the rule of the shorter term for US works, such as Canada (50 pma), Mainland China (50 pma, not Hong Kong or Macao), Germany (70 pma), Mexico (100 pma), Switzerland (70 pma), and other countries with individual treaties. See Commons:Hirtle chart for further explanation. Deutsch | English | español | français | italiano | 日本語 | 한국어 | македонски | português | português do Brasil | русский | українська | +/−
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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