Ferrari chose the English Clayton heaters for the early cars (195/212/340s). This is an aluminum tag in the shape of a triangle 77mm long on each side. Clayton Heater Tag
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 “Super Shell Motor Oil” Tag. 70mm x 25mm for Late Daytonas