File:La Purisima Concepcion circa 1900 Keystone-Mast.jpg

Description	English: Mission La Purísima Concepción circa 1900.
Date	circa 1900 date QS:P,+1900-00-00T00:00:00Z/9,P1480,Q5727902
Source	(Original text: Photograph by Keystone-Mast (Keystone View Company) http://www.cmp.ucr.edu/mainFrame/collections/guides/kmast/)
Author	Photograph by Keystone-Mast (Keystone View Company)
Permission (Reusing this file)	(PD-Pre1978; Note that the image above comes from a one half of a stereographic card. The image was produced by the Keystone View Company sometime before 1963 (when the company ceased operation). The stereographic card which was published (viewable by searching at the source above) bears no copyright notice.)

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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