Dual diaphragm brake booster

I have a 7 3/4" dual diaphragm vacuum booster from a stash of A body parts.

2 72 A 1.jpg

I think that it came from a 72 Duster but am not certain.

2 72 A 2.jpg

The upper center location of the vacuum nipple may give a clue as to the specific application.

2 72 A 4.jpg

The tag is attached but I have no way of researching the origin.

2 72 A 3.jpg

Condition is used, I'm not sure if it works. It may work just fine, I just never used this type on any of my cars to test it.

$50 plus shipping. PayPal preferred.
I will ship from Granite Bay, CA using the USPS.
Thank you.