1920s electric washing machine.
https://s3-us-west-1.amazonaws.com/h...e_fullsize.jpg
Previously:
https://www.homemadetools.net/forum/...133#post168760
https://www.homemadetools.net/forum/...562#post162650
https://www.homemadetools.net/forum/...706#post136738
https://www.homemadetools.net/forum/...268#post126687
https://www.homemadetools.net/forum/...040#post168359