OK, I think I have it . . . But all I was able to find was a sketch (such as you mentioned), I couldn't even find the photo you posted! At any rate, I believe it is one of the Hispanos that was bodied by Jean Antoine Augustin de Vizcaya of Chaville, France under license from Million-Guiet. I'm not really sure what to call this particular body style . . . a convertible coupe, perhaps?