Thanks, Nick. A quick search found a history of the company-quickly scanning showed it to be interesting and centered more around model aircraft engines. There was a mention of stirling but not much. I have some bedtime reading ahead, thanks for the info.
It's interesting how similar the designs are between the two makers.
I have been looking for one of these for a while.
There was a great article on the history of the company in Model Engine News in 2010.
http://modelenginenews.org/people/dc_ltd.html