Christian Corti <cc at informatik.uni-stuttgart.de> writes:
  If you tell me its serial number I can eventually tell
you who
 was/were the previous owner(s) ;-) 
"Underhill Engineering Co Ltd" painted on the top in the eBay pictures
(if you squint) is a bit of a giveaway!
They have a nice page about the machine's history:
http://www.underhill.ca/land-survey-project/15/underhill-engineering-comput…
--
Adam Sampson <ats at offog.org>                         <http://offog.org/>