I saw a good B&W still of Frost and Dietrich where you could see the VP-70 real good. The "grip lines" on the slide were vertical as opposed to the diagonal ones shown in the link you provided, which is also how the majority of the resin kits are (including mine).
But I seem to recall someone on here saying both kinds were used in the film?
Hope that helps.
Chris
"Ahh yes, I seem to remember hearing something faintly about that. Brain washing. Isn't that where you take the brain out of the skull and wash it with cool water?" -- General Urko