Cheers Skyhook
I would not have guessed it was an Aviatic because of the angular tail, I assumed the rear tail on all Aviatics were very rounded. I rail roaded my brain into a Knoller because although the well known C.II looks nothing like it I do know earlier ones looked different and were more angular and at least one of them was known to have poor handling characteristics. Thanks for the plans too, I doubt very much I would build one any time soon but an interesting subject to keep in mind. A project I do have on the shortlist is another A.H.E aircraft just as obscure and I will probably copy you on that one and do it as a quiz.
Alan