Reportedly the prototype of the B-1 Brougham, powered by a Hisso engine, although other B-1s appear to have had lower construction numbers. The type seems to have appeared early in 1927. Lindbergh examined it, but his NYP was essentially different. The Ryan Airlines company was renamed B F Mahoney Aircraft Corp, as painted on the rudder, in July 1927. Photo assumed taken before 1930. Photo from: San Diego Air & Space Museum