Washboard has seen a lot of use over 100 years... put through a wringer, sort of speak - type print on both sides are very faded, see photos.
Wood and corrugated zinc coated tin washboard made by National Washboard Co. circa 1920s.
Web info:
https://www.madeinchicagomuseum.com/single-post/national-washboard-co/
Width: 14 1/2"
Length: 26 1/4"
Good vintage condition: type faded, condition as shown, see photos.
sHD