Duplex hot air engine

• Duplex hot air engine
  Posted by marv in minn on 06 Apr, 2023 16:06
• this is 1/2 size of my Duplex Vacuum engine.
  it is all cast iron castings,
  
  I'm wondering who made these?
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• #1 Reply
  Posted by marv in minn on 06 Apr, 2023 16:08
• the door on the full size engine
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• #2 Reply
  Posted by St Paul Steam on 06 Apr, 2023 16:38
• Very nice Marv.
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• #3 Reply
  Posted by Stoker on 06 Apr, 2023 20:27
• What a perfectly complimentary pair .... Congratulations on having those two beauties!!!
  
  It's just a guess, but I'd suspect that they may have been made by the Duplex Vacuum Motor Co.
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