Too late, but officially the Garrison OM-1 Melmoth?
Yes. I took my reference as Air Britain which just used the term Garrison Melmoth I, but I'm sure OM-1 is the official designation, albeit that the official designation of the Melmoth II, according to the FAA, is....Melmoth II! (as opposed to OM-2)
Thanks Ken, but I feel this one should go to Graeme.
More than happy with that as Graeme came up with Melmoth
Looks like its now back with you Graeme anyway