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File:Aerial of Swan Island Municipal Airport (1).JPG

Original file (1,887 × 1,110 pixels, file size: 525 KB, MIME type: image/jpeg)

Description
English: Swan Island Municipal Airport along the Willamette River
Date
Source City of Portland Archives
Author Unknown authorUnknown author
This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.

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inception

12 March 1935

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image/jpeg

checksum

b4b474f4f500ca7ece8e3d5f31a3071a0479121e

determination method or standard: SHA-1

data size

537,102 byte

height

1,110 pixel

width

1,887 pixel

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Date/TimeThumbnailDimensionsUserComment
current01:41, 14 February 2014Thumbnail for version as of 01:41, 14 February 20141,887 × 1,110 (525 KB)Halvorsen brian{{Information |Description ={{en|1=Swan Island Municipal Airport along the Willamette River}} |Source =City of Portland Archives |Author =Unknown |Date =12 March 1935 |Permission = |other_versions = }} {{PD-US-no notice...

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