本檔案有一個提取出的圖像：​WCFL Sound 10 survey October 1966 Beatles Jim Stagg (cropped).jpg。

本作品在美国属于公有领域，因为其于1929至1977年（包括）间在美国出版，且没有著作权声明。更多详情，请参见共享资源:赫特图表以及公共艺术品“出版”的详细说明。请注意此作品在对美国作品不适用较短期限法则的管辖区可能仍然受版权保护（基于作者的逝世日期），例如加拿大（作者逝世后50年）、中国大陆（作者逝世后50年，不包括香港和澳门）、德国（作者逝世后70年）、墨西哥（作者逝世后100年）、瑞士（作者逝世后70年）及其他有本地条约的国家。 العربية ∙ беларуская (тарашкевіца) ∙ čeština ∙ Deutsch ∙ Ελληνικά ∙ English ∙ español ∙ français ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ 한국어 ∙ македонски ∙ Nederlands ∙ português ∙ русский ∙ sicilianu ∙ slovenščina ∙ ไทย ∙ Tiếng Việt ∙ 中文（简体） ∙ 中文（繁體） ∙ +/−

After researching this and some of the other Sound 10 Surveys and promotional photos given to listeners, I found that WCFL and/or the Chicago Federation of Labor did not mark any of this material with any type of copyright mark or other notification.

• There are no copyright marks or statements on either side of this survey. What is seen on the other side of it at the lower right is a mark indicating that the material was printed by union printers. (This would be in keeping with a radio station owned and operated by a union.) WCFL AM was sold by the Chicago Federation of Labor in 1978. The call letters disappeared from AM Radio in 1987.

• The item can be dated by the information on the other side of the survey at the link above, "Week ending October 6, 1966".
• Copyright searches were done on the following:

Chicago Federation of Labor-no results

WCFL-two results for books written about the radio station by non-employees.

• There is no evidence that a copyright is claimed on this material.

本檔案是使用For the Common Good，從en.wikipedia轉移到維基共享資源。