Six months

• #0 Reply
  Posted by komet163b on 17 Aug, 2021 15:19
• You must be right!  Walking....Beam....Stirling....Engine!
  
  Once I searched on the man's image, and found out it was
  Mr Stirling himself, and you love Stirling Engines, it all
  fell into place - but too late!
  
  Wayne
•