Washboard

 An old washboard is a device that was used to wash clothes by hand before the invention of washing machines. It consists of a wooden frame with ridges or corrugations of wood or metal, where the clothes are rubbed and scrubbed with soap and water. Old washboards are now considered antiques or collectibles, and some people use them as musical instruments or decorative items12

If you are interested in buying or selling old washboards, you can check out some online platforms, such as eBay or Etsy, where you can find various types and prices of old washboards