Found this at a yard sale but I have no idea what it is. Thoughts?

History may not be everyone’s favorite subject, but it offers fascinating insights, like the device in this picture.

Once widely used but now nearly forgotten, this laundry tool simplified the arduous process of washing clothes.

Long ago, people would beat their clothes against rocks by the river. Over time, laundry methods evolved, leading to machines that handle the entire process in an hour.

This device played a crucial role in easing the manual effort of doing laundry in the past.