Hi Mike!Indeed, Carlo has it. It is the T.H.K. 11. I said that it is extant because, when searching to ensure that this aeroplane had not put in a prior appearance here (!), I came across a photograph of it, on wikipedia, the caption to which is that the sole example produced is on display in the Ankara Turkish Aeronautical Museum. And we all know that wikipedia is infallible, don't we! Anyhow, over to Italy for the next mystery.