Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country. Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Long_branch_Aerodrome_1916.jpg
Public domainPublic domainfalsefalse
This Canadian work, of which the author or authors are unknown, is in the public domain in Canada because:
It was published before January 1, 1970; or
It was created before January 1, 1945; or
75 years have passed since the end of the calendar year of its creation, without it ever having been published while still in copyright.