I wonder if the 3-cylinder engine is a triple-expansion type?  It 
doesn't appear so, since the cylinders are all the same size.  Thus, 
it must be a single-expansion type as seen on the larger Shays.  I 
can't imagine how they're going to make a crankshaft small 
enough, but you never know....

regards,
  -vance-

Vance Bass                
Albuquerque, New Mexico, USA
Small-scale live steam resources: http://www.nmia.com/~vrbass 

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