"What Is This Strange Pocket Watch With A Lever And Odd Face?"
"It's a pocket roulette wheel, modeled to look like a pocket watch for easy concealment but with a rotating dial instead of an indicator hand. It has 12 parts instead of the typical number to look like a broken pocket watch upon inspection. Most likely this one was crafted out of a pocket watch as some of the original frame is visible around the dial/wheel/face."
Looking back at older posts, it's been this way for a while.
Now it's going to bug me.
#19 often seen in old cartoons like Tom and Jerry. :-)