I found the closeup of one of the stacks of bills. it's folded and creased as if it was soaking wet, then dried to it's final form?
Good find. Looks like trauma of some kind? Trying not to jump to conclusions .... maybe other bills show the same condition?
That's a pretty good example of just how resilient the paper (actually a cloth) money is printed on is.
We need a better understanding of the condition issues, the structure of a dollar bill, and the decay clock. Palmer says a bill could not withstand being exposed to the elements for more than a year.
Likewise we need a better understanding of the tonnage that gets deposited and removed from Tina Bar per annum, during high water cycles, and the like.
And we still don't have the process by which things are deposited on Tina Bar ... if there is a common route.