formula s emblem

[oldnew]

What is the difference in the 1969 formula s emblem on the trunk lid compared to the other formula s years?

 

[66340SEDAN]

It was smaller and painted black on the outer face, The word "Formula" is also raised on the 69 Emblem and 65-68 has it stamped in. 1969 was the only year for a trunk mounted Formula S emblem too.

 

[oldnew]

thanks!