File:1949 postcard of Washington Park Zoo Milwaukee Wisconsin Zebras.png

Summary

Description	English: 1949 postcard of Washington Park Zoo Milwaukee Wisconsin Zebras
Date	1949
Source	Washington Park Zoo Post Cards. Zoo was operational from 1892-1958
Author	E. C. Kropp Co.

Licensing

This work is in the public domain in the United States because it was published in the United States between 1930 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), 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.

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