Ferrari 750 Monza at the 1955 GP Supercortemaggiore race at Monza, entry #16 and driver Mike Hawthorn (white pants). The other driver was Umberto Maglioli. They became 2nd place, and winner was Behra+Musso.  Not sure which s/n this is.<a rel="nofollow" class="external autonumber" href="http://www.barchetta.cc/All.ferraris/victories/monza/monza-detail/1955-monza-supercortemaggiore/index.html">[1]</a>
Unknown photographer
<a rel="nofollow" class="external autonumber" href="https://image.invaluable.com/housePhotos/Ladenburg/21/672121/H21382-L208528490_original.jpg">[2]</a>