I loved that documentary — I wonder if it’s on stream somewhere.
They had a copy of the ship manifest from Seville, and it listed the cargo items, including the serial numbered gold bars with their respective weight. I just got a cold chill thinking about it again — they weighed one of the numbered bars, and it had the exact weight listed in the manifest.
That’s how the Atocho wreck was positively IDed.
We visited the Mel Fisher Museum in Key West several years ago. Worth the trip.