One of the final designs produced by the Martin Company was this blunt-nosed vehicle, designed by Hans Multhopp.
The paintings below were photographed at the Ira G. Ross Niagara Aerospace Museum archive; both of these were painted on thick matt board. Nothing beats a well-rendered hand-made illustration.
Note the inclusion of a turbojet engine for landing purposes, a common design element at this stage in the program. The vehicle was not intended to be orbital, but sub-orbital, lofted by a Titan I ICBM or derivative. As such, it was much less sensitive to weight issues.
