1976 Plymouth Scamp Fender Tag

I just bought this car earlier this week and was wondering if someone could help me decode the fender tag. I was able to get the VIN decoded, but for some reason all the fender tag decoders I found stop at 1974.

Here are the codes:

26 END
J52 L31 M21 M38 N65 Y16
V1A U A81 B41 G52 H51
LA2 E2B6 000 A21 806303
E44 D32 VH23 G6F ######

I appreciate any help that I can get.

Thanks,
Kenny