The 1955 Maserati 300S s/n 3063 had an accident it seems, at the GP Supercortemaggiore at Autodromo Monza on 29 May 1955. It was driven as entry #64 (license "24-MO") by Piero Valenzano and Franco Bordoni.  They did not finish.<a rel="nofollow" class="external autonumber" href="https://www.racingsportscars.com/results/Monza-1955-05-29-4778.html">[1]</a> Piero Valenzano was the brother of Gino Valenzano and died 5 weeks later on 10 July 1955 at a different race, the Coppa d'oro Dolomiti.<a rel="nofollow" class="external autonumber" href="https://www.statsf1.com/en/piero-valenzano.aspx">[2]</a>
Unknown photographer
<a rel="nofollow" class="external autonumber" href="https://www.benhuset.dk/unknown64b.jpg">[3]</a>