on Jun 19, 2015
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 | This style is typically found on Singer treadle bases dating from the 1900's to 1920's. The wheel has a narrow outer ring compared to the center thickness The wheel measures 1-1/4" diameter x 1/2" thick at the center and 3/8" thick at the outer ring
 It has a 1/4" diameter x 1-7/16" long pin
 
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