Gustav Becker Wall Clock (Box Regulator)

This was the very first antique clock I purchased. I found it a while back at a yard sale for 20 dollars. It was dirty, had a broken pane of glass, no key, and I didn't know if it worked, or how old it was.

As it turns out, it's a high quality German clock, made by Gustav Becker. Since I didn't know how to clean clocks at the time, I had this one cleaned by a professional, at 100$.