One of the main plotlines of Live and Let Die is about treasure coins suddenly flooding the market, and being used to pay for criminal activities.
When James Bond is receiving his briefing from M on the case, the chief tells of a tale about some of the treasure of the Pirate Blackbeard:
‘This Blackbeard story would stand up to most investigations,’ continued M, ‘because there is reason to believe that part of his hoard was dug up around Christmas Day, 1928, at a place called Plum Point. It’s a narrow neck of land in Beaufort County, North Carolina, where a stream called Bath Creek flows into the Pamlico River. Don’t think I’m an expert,’ he smiled, ‘you can read all about this in the dossier. So, in theory, it would be quite reasonable for those lucky treasure-hunters to have hidden the loot until everyone had forgotten the story and then thrown it fast on the market.
Fleming obviously had read about this story and it stuck with him enough to include it in this novel. Notice the wording of this 1936 newspaper account:
This treasure was found buried in the sand at Plum Point, a narrow neck of land in North Carolina, U.S.A., where Bath Creek flows into the Pamlico River.
It seems plausible that Fleming read that very account!
For more on the location and legend of Blackbeard – Historic Bath: Blackbeard the Pirate
Here is Plum Point (The little point jutting out on the right side of the river.):