Vintage intake manifold ID

[Longhorn Man]

I posted something on here a week or so ago, asking if there was a way to ID an old intake...
well I FINALLY got numbers/pics of it.
You can see, what apears to be a date code...2-2-61
Just above it, there is a number...9788349...if this number is the ID number, and it comes back as a bad one...I can double check the numbar again after bead blasting it...which I plan on doing if this sucker is worth something.
You can see in the front of the intake, it has the old style oil filler..283/327 style. (I know more than just those motors were so equipped, just those are the ones we all relate to on here) There is also no bolt hole for the later style passenger side mount for the alt. This points out to me it is not a generic type replacement...if GM ever made such an animal. Also notice, for a stock intake, it is a bit of a high rise...a bit taller than my Performer intake that I just got. (Thanks Jamie!) This is a steel intake, and it has the rivited plate in the center underneath to prevent the hot oil from heating up the intake charge.

Any one able to tell me if it might be worth something?