1966 Barracuda Formula S

Hi. Can anyone help me decipher some codes on this fender tag? It's for a 1966 Plymouth Barracuda Formula S.

For the bottom row there's a "P" under the "Z"

For the middle row, there's a "9" under the "D" and a "1" under the "E", a "1" under the "R" and an "8" under the "Z"

For the top row, there's a "4" under the "B" and a "1" under the "U"

I've also posted fender tags for 1962 & 1965 Plymouth Valiant Signet 200s as well if anyone is good at these.

Thanks again,

--Brandon