Do not remove this tag until the deletion nomination is closed.
Reason for the nomination:
Non-free license.
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DescriptionBombardier C-21A 3-view line drawing.png
English: A 3-view line drawing of the Bombardier C-21A. This image is a composite of two different pages.
Date
Source
Maintenance Manual, Organizational, Aircraft General: USAF Series C-21A Aircraft, Change 18, T.O. 1C-21A-2-1, 2013, 3-4. Provided by the National Museum of the United States Air Force, Dayton, Ohio. Source of image was PDF on CD.
Note on title page read: "DISTRIBUTION STATEMENT D - Distribution authorized to the Department of Defense and U.S. DoD Contractors only. Administrative or operational use, 1 November 1987." According to chart of distribution statements and reasons, proprietary information cannot be a reason for using distribution statement D. See a discussion on the Village Pump for more information.
Licensing
This image is in the public domain because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason:
Public domainPublic domainfalsefalse
This image or file is a work of a U.S. Air Force Airman or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image or file is in the public domain in the United States.
This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as when the enhancements are clear but insufficient. For known raw unenhanced scans you can use an appropriate {{PD-old}} tag instead. For usage, see Commons:When to use the PD-scan tag.
Note: This tag applies to scans and photocopies only. For photographs of public domain originals taken from afar, {{PD-Art}} may be applicable. See Commons:When to use the PD-Art tag.
Captions
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Uploaded a work by United States Air Force from ''Maintenance Manual, Organizational, Aircraft General: USAF Series C-21A Aircraft'', Change 18, T.O. 1C-21A-2–1, 2013, 3-4. Provided by the National Museum of the United States Air Force, Dayton, Ohio. Source of image was PDF on CD. with UploadWizard