Pinback button promoting William Jennings Bryan for president, 1900. The Whitehead & Hoag Co., with advertising backpaper for Midland Novelty Co., Shenandoah, Iowa.
Among political memorabilia collectors, just say "Bryan Safe" and everyone knows you're referring to this classic button featuring the Great Commoner on a bank safe. Here's a choice, nicely centered example, complete with back paper. Essential to any Bryan or generalist collection.