Public domain scan - 18th-century print, free to use, no copyright restrictions image - Picryl description
From: Music Copyright Deposits, 1870-1885 (Microfilm M 3500) Also available through the Library of Congress Web Site as facsimile page images. (additional physical form)
Photograph shows soldiers with a sauterelle (grenade launcher) during World War I. (Source: Flickr Commons project, 2013)
Public domain illustrated book page scan, related to arts, free to use, no copyright restrictions image - Picryl description
Public domain image of Egyptian art, free to use, no copyright restrictions photo - Picryl description