File:Rcnas cadets 1918 PA-135769.jpg

The first group of cadets of the Royal Canadian Naval Air Service being trained at the US Navy Ground School, Walker Hall, Massachusetts Institute of Technology - circa Sept 1918.

Canadian Navy Heritage website. Image Negative Number PA-135769

Circa September 1918

Unknown (Part of the E.J. Marsh collection). Credit Library and Archives Canada

	This Canadian work is in the public domain in Canada because its copyright has expired for one of the following reasons: Criteria PD in Canada if PD in Canada on 1 January 1996 if 1. it was subject to Crown copyright (see Template:PD-Canada-Crown) first published before 1974, first published before 1946, According to Public Works and Government Services Canada / Travaux publics et Services gouvernementaux Canada, Canada has no intention of renewing expired Crown Copyright works in any country, and consequently the URAA does not apply. An email is on record at VRT ticket # 2013122310013986 2. it was a photograph created before 1949 created before 1949 created before 1946 3. it was a photograph created after 1948 — and the copyright was owned by a corporation, created after 1948—but before 1962 N/A 4. it was a work by an identifiable author * created by an author who died before 1972; * for authors who die after 1971, 70 years p.m.a.; (but unpublished works by authors who died after 1948 but before 1979 will not enter the public domain until 2049), published by an author who died before 1946 5. where the creator is unknown the sooner of: A. 75 years p.r., or (if published before auch term expires) the earlier of 75 years p.d. and 100 years p.r., or B. publication before 1970, or (if not published) creation before 1945 but, where the creator becomes known prior to death (where the disclosure occurs prior to the initial term's anticipated expiry), the term becomes that attributable to works by an identifiable author. In the case of joint works, copyright extends accordingly to the death of the last identifiable author. first published before 1946 A more exhaustive listing of terms of copyright and permitted exceptions, by type of work, may be found at the Toronto Archives' Copyright guidelines for researchers PD-CA Public domain in Canada //en.wikipedia.org/wiki/File:Rcnas_cadets_1918_PA-135769.jpg The media description page should identify which reason applies.
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This image is in the public domain in the United States because it was first published outside the United States prior to January 1, 1929. Other jurisdictions have other rules. Also note that this image may not be in the public domain in the 9th Circuit if it was first published on or after July 1, 1909 in noncompliance with US formalities, unless the author is known to have died in 1953 or earlier (more than 70 years ago) or the work was created in 1903 or earlier (more than 120 years ago.)[1] PD-US Public domain in the United States //en.wikipedia.org/wiki/File:Rcnas_cadets_1918_PA-135769.jpg

This file is believed to be out of copyright in its home country, as well as the US. If this is confirmed when checked, it should be copied to Wikimedia Commons.