Could that be... a 1950 Alfa Romeo 6C 2500 SS bodied by Carrozzeria Riva?
EDIT: Oh yeah, apparently Guido Cattaneo collaborated with Gilco on the design of the chassis, the engine, however, came from a 2500 SS and the body is definitely by Riva. On top of that, I don’t know how arbitrary the year I’ve given might be with regard to the model’s actual origins but the car did win a prize at the 1950 Concours d’Elégance in Lido, Venice.