VP on barrel of Colt commercial

[43Colt]

I recently saw a pre-Series 70 commercial (60's vintage, I think) with the factory barrel (says COLT 45 AUTO on top), but it also has the Colt VP stamp on the chamber hood as well. I've never seen another Colt like this. Anybody ever seen that before?

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[Johnny Peppers]

I have never seen it on anything but the receiver of a Colt. It was only applied after the pistol had passed all requirements and inspections.

From Colt's "A Century of Achievement".

"A Colt has to earn it V.P.,--the "verified proof" mark. It is truly a badge of perfection which the final inspectors strike on after they have given an arm a clean bill and a license to go out into the world and uphold the Colt reputation for building the world's finest hand guns."