The “Clam Shell” type jacks were supplied with the “inside plug” 250 series cars. A drawing of these jacks can be seen on page 256 of Richard Merritt’s book Ferrari: Operating, Maintenance, and Service Handbooks 1948-1963. The jacks had an A. Rejna metal tag riveted to the top casting. The original tags were either red or green. Red A. Rejna jack manufacturer’s 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 X-100 SAE 40 Tag. 70mm x 25mm For 275, 330 & 365
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.
The early racing cars used an aircraft rotary fuel pump. These are seen on the TRCs, Testa Rossas and the Maseratis from the 1950s and 1960s. These tags were screwed on the front surface. The dimensions are 43mmx43mm. FIMAC Fuel Pump I.D. Tag.