Today’s vote incentive on TWC is the image behind the chapter cover for Part 16.  The cover was based on a painting titled “The Flirt’s Periscope” by Rolf Armstrong for Puck Magazine Vol. 79, Issue 2037, dated March 18, 1916.  This image (like a lot of Puck artwork) is in the public domain.

I handled and scanned this image when I still worked at the OSU Cartoon Research Library.  ^_^  The version available online can be seen here.