File:Perry-Mason-Crying-Swallow-1.jpg

描述Perry-Mason-Crying-Swallow-1.jpg	English: Illustration from The American Magazine printing of "The Case of the Crying Swallow", a Perry Mason short story by Erle Stanley Gardner
日期	1947年8月
来源	Self scan from The American Magazine for August 1947 (p. 145)
作者	Crowell Publishing Company, illustration by Robert W. Douglas
授权 (二次使用本文件)	Public domainPublic domainfalsefalse 本作品属于公有领域，因为其是于1929~1963年之间在美国出版，且无论其是否具有著作权声明，它并未进行著作权更新。更多信息请参考Commons:Hirtle chart/zh及著作权更新日志。请注意该作品在其他对美国作品不适用较短期限法则的司法管辖区仍然受著作权保护（基于作者的逝世日期），如加拿大（作者过世后70年）、中国大陆（作者过世后50年，不包括香港和澳门）、德国（作者过世后70年）、墨西哥（作者过世后100年）、瑞士（作者过世后70年）及其他有本地条约的国家。 العربية ∙ Deutsch ∙ English ∙ español ∙ français ∙ galego ∙ italiano ∙ 日本語 ∙ 한국어 ∙ македонски ∙ português ∙ português do Brasil ∙ русский ∙ sicilianu ∙ slovenščina ∙ українська ∙ 简体中文 ∙ 繁體中文 ∙ +/−

The August 1947 issue of The American Magazine was copyrighted in 1947 by Crowell Publishing (page 22) but not renewed:

• January–December 1975

Background
"Frank Leslie's Popular Monthly began publishing in 1876. In 1904, it was renamed Leslie's Monthly Magazine, and then Leslie's Magazine in 1905. Later that year (in the middle of volume 60), it was renamed the American Illustrated Magazine, shortening to the American Magazine in 1906. It kept continuous volume numbering throughout its history. The magazine ceased publication in 1956. While no copyright renewals are known for the issues, a number of stories that appeared in the magazine had their copyrights renewed."