Bob Jorgensen's hand-built Semi-Rotary Steam Engine, twin horseshoe-shaped cylinders, square pistons.
Bob's web site is at https://sites.google.com/site/jorgensensteamsite2/
Join us at our new forum called CSEE
CLASSIC STEAM ENGINE ENGINEERING FORUM
at this link:
http://www.classicsteamengineering.com/index.php
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