gl1200 interstate identity historic info request please!

hi wingers

i live in the uk and i've never
owned an american bike before.
i've been trying to find out the
model/i.d of my bike.
on the rh/bottom of frame label
i've no obtained some info.
i don't know what it all means:-


type: sc14 ?
frame: sc14-4001933 (4 million+ gw)
p.v.a 83/6521 ?

the owners papers advise:
interstate (de) luxe
1984.

i don't know what my full exact
model is. on the honda parts
manual i d/l today. it advises
same year with different letters
A & L

i'm confused about my bikes
model reference for finding parts etc.

any advice greatly appreciated
wingers!

regards and thanks everyone!

angel
uk winger (rookie)