The later 275 and 330 desings reverted to the crescent-shaped aluminum tags as had been used on the earlier inside-plug 250 cars. The filter element number that is stamped in the “Tipo” block on the tags has changed from “AT4094” on the inside plug 250s to “2228.01” for the 275/330s. 275/330 crescent-shaped air cleaner tag.
Ferrari made a small series of Super cars in the late 1950s. The larger engines required a larger filter element and a different tag was used. This one has the word “RETEX” (net or filter) in the center of the top line. Super America crescent-shaped air cleaner tag.
This is an aluminum tag with a black overlay. These tags were mounted on the top of the timing chain housing on all of the V-12 engines until the 275 GTB 4 cams when they were attached to the top, rear of the air cleaner. On the 330s the tags were moved to the top, front of the left side valve cover. These tags are mounted on the aluminum castings with small “U-drive” rivets and to the 275GTB/4s with the hand bucked round head rivets. V-12 Firing Order Tags with correct rivets