I was curious just what I was working with so I pulled out GG's book and decoded the fender tag.

1972 Duster with 225 engine and 3 speed manual with floor shift.
B1 paint code (Blue Sky) exterior with B5 (medium blue) interior
Bench seat, 2 watt AM radio with drip trough moldings

All of that I understand and can see evidence of here or there.

Then the interesting stuff:
A64 - Gold Duster package?
V4X - Black vinyl roof (Halo)?
V5X - Black body side moldings?

I do not see any evidence of the vinyl roof or the body side moldings so that stuff must have been taken off a long time ago and holes filled or something.

Might have been a nice looking car with the light blue paint and a black vinyl roof. I'll have to search around, I'm not sure I know what a Halo vinyl roof looks like but I'm sure I can find pictures.