Looks like my mistake. The first digit of the build date was mostly punched by the rivet, so I guessed it was a "12". Looks like its actually "02". The VIN is L52289x, and the POP shows the car being delivered in March of '69 in California. The cowl hood "documentation" as such is the air cleaner code of "DG" on line 180 of the chassis broadcast sheet. My second Z was an RS flat hood car (built 02C, L52463x) that had an air cleaner code of "07" in box 180.
Sorry for the confusion, I knew that 12B was early for a ZL2 car, I just didn't verify that it was 'too early" before I posted. I should have learned from CBS news that you have to check your facts BEFORE going to press.......
