Archimedes' screw.  Public domain, from Chambers's Encyclopedia (Philadelphia: J. B. Lippincott Company, 1875).  Added to illustrate article <a href="https://en.wikipedia.org/wiki/Archimedes" class="extiw" title="en:Archimedes">en:Archimedes</a>.
The original uploader was <a href="https://en.wikipedia.org/wiki/User:Ianmacm" class="extiw" title="wikipedia:User:Ianmacm">Ianmacm</a> at <a href="https://en.wikipedia.org/wiki/" class="extiw" title="wikipedia:">English Wikipedia</a>.
18 June 2007 (original upload date)
Transferred from <span class="plainlinks"><a class="external text" href="https://en.wikipedia.org">en.wikipedia</a></span> to Commons.