This should be the car you are asking about..
As it is shown, in your pic as well, on the Paris Salon, the summer hood was below deck, and it was little more than a very light roadster affair. This was (later?) augmented by a (in any case) professionally made drop head coupé roof which kept out the elements rather better, but which did not fold down very far. Luckily the original body was not altered, and with the summer hood out, it had a vast luggage department.