Breguet 280TCapt Johns simply describes the aircraft as a Berline Breguet, a single-engined, 8-seater plane.
According to research, the most likely candidate is the 280T. It indeed had a single engine and eight seats (two for crew, six for passengers). They were flown by Air Union, an airline eventually absorbed into Air France, on routes between Paris, southern France, Switzerland and occasionally London.The 280T first flew in 1928. It has a top speed of nearly 140mph and a range of 700 miles.