Ferrari had a long relationship with the Shell oil company. A lot of the early cars had some type of metal tag in the engine compartment specifying the type of Shell oil to be used. Shell Oil MO 100 Tag. 70mm X 25mm. For early Daytonas
These are aluminum tags that were used on the early 1950s cars. The reservoir mounting bracket had four tiny slots and the end tabs of these tags were inserted into these slots then bent to hold them in place. The brake fluid was very corrosive so few of these tags survived. Early Brake Fluid Reservoir Aluminum Tag.
Weber carburetors were made in Bologna and were used on “all” of the Ferraris from the 815 and 125s through until the 512BBs. There are photos of T.R. #0666 and the four cam 290/315/335s with Solex carburetors but Webers were the norm. The really early carburetors had beautiful little cast brass tags, but Weber soon switched to the more conventional aluminum tags with the black overlay. These tags were attached to the carburetors with small u-drive rivets. Tipo (C) 24×45.7mm, hole spacing 21x41mm, Weber script is 6mm high