glovebox door numbers...what do they mean???

[FLchevygrl]

I recently bought a 69 chevy 3/4 ton ton truck. I seen somewhere on here you mentioned the sticker on the glovebox door. I'm trying to find out what mine means. as mine is very faded where it gives a description but the option numbers are readable.
they are as follows:
4A11BB
4F51BA
4F60GA
4G60BA
4M20NA
4507AA (i think my b/f wrote this down wrong)
how and where would I decode these? any help is greatly appreciated.