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Washboard
In the past, washing was done by hand. After cooking the laundry, each
piece was soaped with finely grated soap (see soap shaver) and rubbed
clean. This is only possible with the hands, but one can also use a laundry
scrubber and a washboard, i.e. a ribbed board, later a galvanized plate
(approx. 40-60 cm long; approx. 30-50 cm wide). See also the laundry
beater. [MOT]