Crown copyright expired. As public domain in Canada prior to 1996, also public domain in the United States. (As per Commons:Licensing: Uploads of non-U.S. works are allowed only on the Commons if the work is covered by a free license valid in both the U.S. and the country of origin of the work, or if it is in the public domain in both countries.)
This Canadian work is in the public domain in Canada because its copyright has expired for one of the following reasons:
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(but unpublished works by authors who died after 1948 but before 1979 will not enter the public domain until 2049),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-CAPublic domain in Canada//en.wikipedia.org/wiki/File:Porpoise_sledge_WW2.jpg
The media description page should identify which reason applies.
This file is NOT necessarily in the public domain in the United States because a non-simple image can only be in the public domain in the U.S.:
if it entered the public domain in Canada prior to 1996, or
when, after that date, its copyright term expires in accordance with U.S. law.
if it was subject to Crown Copyright and published before 1974
Information about the creation date and creator should be provided.
If the image is not in the public domain in the United States, in addition to the license tag for its status in Canada an appropriate fair use license and rationale should be provided, or the image should be proposed for deletion.
If the media is in the public domain in both Canada and the United States, it may be transferred to the Wikimedia Commons.
Note: If this image is in the public domain in the U.S., modify the end of the copyright tag from }} to |commons}}. This will replace the preceding U.S. copyright notification with a nomination for this image to be moved to the Wikimedia Commons.
This image is in the public domain in the United States because
it was first published outside the United States (and not published in the U.S. within 30 days) and
it was first published before 1978 without complying with U.S. copyright formalities or after 1978 without copyright notice and
it was in the public domain in its home country on the URAA date (January 1, 1996 for most countries).
PD-USPublic domain in the United States//en.wikipedia.org/wiki/File:Porpoise_sledge_WW2.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 transferred to Wikimedia Commons, unless the file is tagged {{Keep Local}}
File history
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