Image: Baseball center comparison
Description: Halves of two baseballs, illustrating the composition of the balls. On the left, a traditional cork-centered ball, and on the right, a rubber-centered ball used during World War II. The rubber centers, borrowed from golf balls, were used due to wartime material shortages.
Title: Baseball center comparison
Credit: This image is available from the United States Library of Congress's Prints and Photographs division under the digital ID fsa.8b09630. 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: Roger Smith, photographer for the Office of War Information
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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