I picked a couple of whirligigs up from an estate sale client. His grandfather had made them and left them to my client where they sat in a box in the garage for many years. They are around 70-80 years old. This whirligig does not work. However, the spinner simply needs a couple of washers and nuts to secure it in place and then it should work.
The milk lady moves, and the mechanism spins without issue. It is 18" long x 17" tall x 12 wide. Happy to answer any questions you may have.