Power Brake Vacuum Cannister Exclusive to Formula S?

I was wondering if the supplemental vacuum canister on the '65 Barracuda Formula S was also used on the Valiant models that have power brakes? It can be seen in the lower right hand corner of the foto. It is black, rectangular, with rounded edges. Thank you.

P.S. You need not mention the blue-colored commando valve covers, the machine shop did not know any better.

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