<VV> 1962 Corvair Monza Sedan Interior codes?

[Charles Lee]

I need an interior TRIM TAG decoded for a car I found: 
1962 Corvair Monza Sedan 

The car has a blue and white cloth interior, which I've heard was optional,
but NOT for '62 and NOT on bucket seats?

Interior Code tag says : "TRIM3-719 21"

719 is "Aqua" but what is the PREFIX "3"?

And what is the "21"?

I can supply a pic of the trium tag, but it slows things down, if needed I
can provide it...

Thanks!

Charles Lee