Douglas_XSB2D-1_Destroyer_3-view_line_drawing.png
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Summary
Description Douglas XSB2D-1 Destroyer 3-view line drawing.png |
English:
A 3-view line drawing of the Douglas XSB2D-1 Destroyer. This image is a composite of two different pages.
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Date |
Unknown date
Unknown date
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Source | Instructions for the Erection and Maintenance of the Model XSB2D-1 (El Segundo, California: Douglas Aircraft Company, n.d.), 8–9. Scanned and provided via email by Patrick Hibbard of the eBay account Warbirds and Trains . |
Author | Douglas Aircraft Company via Patrick Hibbard |
Permission
( Reusing this file ) |
The manual the image was cropped from had a defective copyright notice. The notice omits the copyright symbol and/or any use of the word "copyright" and the date. |
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:
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 . |