1971 Corvette Trim Code Discrepancy

One of the submissions so far has stated that the trim plate show a '403' code for the black / leather interior option. Code '402' is the norm for that cominbation and no '403' is officially listed.
A couple submission have stated the code '400' for the black / vinyl interior option. Most sources show no code listed for the combination but rather a missing code.

Thanks to Mr. Morgan, a NCRS judge and member, we now know the trim codes with certainty. 403 is correct for the Black Leather interior. Also, the 400 code should be on the tag for Black Vinyl cars. Thanks!

Another member (#09117) has a trim tag with '400' for the interior code. The interior is black leather though.