Magnificent 1938 pic of the first 312. At that stage “Honolulu Clipper” was equiped with the interim twin vertical stabilizers installed instead of the original single one, in search of a cure to the lack of directional stability, latter the central fin was restored solving the problem…. and creating that really iconic tail.
Those Boeing Clippers were, without doubt, a class apart.
Photo: William T. Larkins’ archives.