Maserati and Ferrari at Pescara in 1953, it should be the Coppa Acerbo on 16 August 1953. Signed by Luigi Musso who according to the picture source is in car #40, and this car may be his s/n 2043.  The #16 is a Ferrari. There are several pictures from this corner with the brick building and open window with spectators in 1953.
Unknown photographer
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