I received these photos with the question, "Is that a water pump
attached to the gas engine?"  I've asked the sender (in Hawaii) for
more photos if possible.

Robbie Rhodes, MMD

 [   Collis engine coupled to Roots blower
 [ http://www.mmdigest.com/Attachments/17/11/02/171102_063709_collis%20engine1.jpg
 
 [   radiator inside the flywheel
 [ http://www.mmdigest.com/Attachments/17/11/02/171102_063709_radiator1.jpg
 
 [   "This instrument is owned by Tangley Company of Muscatine, Iowa"
 [ http://www.mmdigest.com/Attachments/17/11/02/171102_063709_collis%20plate1.jpg