Where does the S badge go?

4spdragtop said
Tach is NOT an "S" option for 67-9. 5th digit in vin has to be either an E(273 commando) or an H(383).

What do you mean by an "S" option?

My 67 Formula S 273 came with the factory tach as an option. So it was available with the Formula S package. If that is what is meant by "S" package.