A lot of Miles designs shared much the same lines, The Falcon series ran to six different marks, The Miles Merlin looked much the same, as did the Hawcon (except for the wheels), Nighthawk and Queen Wasp. But looking at the exhaust stubs, the line of the wheel trousers and that distinctive silver "frame" around the rear window I think one strong possibility is the Miles M.3B Falcon Six. This won the Kings Cup Air Race in 1935 piloted by Miles' sales manager
Tommy Rose. He then was sent on a tour around Europe, showing it off to European Air Forces and other potential buyers. Which would match up nicely to the Romanian link. The following year he used the same aircraft to break the London-to-Cape Town Speed record.
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