Philippoteaux painting Gettysburg Cyclorama
<div class="fn value">
Paul Philippoteaux</div>
19 May 2007 (according to <a href="https://en.wikipedia.org/wiki/Exchangeable_image_file_format" class="extiw" title="en:Exchangeable image file format">Exif</a> data)
Copied (note: not "downloaded") from the archives of Gettysburg National Military Park. Physically visited the park and copied it using photography.