was this called the 2/20 record by paul jaray ,1952?
Actually I don't know who designed it, just that it's an experimental Espenlaub streamliner from around 1952, so as it's Christmas I'll give you the point and call it solved..
Which makes you an Expert! Well done.
No more answering Rookie puzzles for you though so you'll have to forget my NEH 2321 at least for the time being!