Dino Brugioni says it was not the original he saw. He should know don't you think
In my opinion, Brugioni did not see - and could not have seen -the original. The original was either still in Zapruder's safe or in Chicago (depending on when Brugioni saw his version). Zapruder sold the original and a first generation copy to Time/Life on Saturday morning, the day after the assassination. That original was then sent to the Time/Life offices in Chicago where they went to publishing stills/frames from it. The copy was sent to the office in New York. Two other first generation copies were given to the government on Friday, the day of the assassination.
So Brugioni likely either saw a copy that Zapruder gave the government or a copy of one of the two copies. But he couldn't, as I see it, have seen the original since it wasn't in the possession of the government. At least not during the time in question; which was, as I understand it, shortly after the assassination.