Thread: Vintage Giggles aka What are they smoking????
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Old 06-12-2012, 06:46 AM
  #1007  
Krisb
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Singer's model 15, first introduced in 1870, has a round bobbin. The 27/127 and 28/128, first manufactured in 1885, have a bullet bobbin. So it wasn't an all at once switchover.
Last edited by Krisb; 06-12-2012 at 06:58 AM.
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