It is (was) an ENGINE IDENTIFICATION TAG used during that period. They went to metal tags later.
Full description is described in a period TECH BULLETIN of the period which I seem to have misplaced.
The trouble with them was being cardboard, they didn't last long.
Do you have any indication of the TB number ? Specifically for 56, Tbird.
I would have to search through the SERVICE LETTERS I have. It's in there.
I GUARANTEE oldmics has it if he were still here.
Can you wait few days?
ADDENDUM - (Boy Likes His Addendums; Colons Too)
Here is an ENGINE ID tag used in the sixties and early seventies. Notice ENGINE CODE NUMBER. That is what you are seeing on a fifties car engine tag abbreviated. The CODE will give FORD the exact build and calibration of the engine(s).
![]()
According to the restoration manual from CTCI ,Gil Baumgartner, that tag indicates that the engine is a 1956 with an overdrive transmission.
According to the restoration manual from CTCI ,Gil Baumgartner, that tag indicates that the engine is a 1956 with an overdrive transmission.