My main problem with Flyjack is his poor use of English, and knowing exactly what he is saying. He says quote:
"L55376548B was the bill on the top one of the of the packets the Ingrams had that Ralph Himmelsbach Id'd as matching the FBI list." What is he saying !?
It's already been established Harold called in serial numbers plural, to be verified, not just one. The FBI Getty image of the groups of bills the Ingrams turned in, shows L55376548B is the top bill, on the top group of bills showing, in the second column of groups pictured in the Getty image. See Getty photo below! Maybe this is what Flyjack means when he writes: "was the bill on the top one of the of the packets the Ingrams had" ?? The serial number L55376548B matches the photo of one bill FJ posted, with the top bill on the top group (second column) of bills shown in the Getty photo.
That does not mean that L55376548B was the top bill on the whole Ingram find! That information was lost when the Ingrams pulled their find from the sand in pieces, and stuffed everything into a sandwich bag.
We know that the Ingrams tried to separate and clean bills back at the apartment. The Getty photo evidently shows the fruits of their efforts, separating and cleaning. That photo shows the groups of money the Ingrams turned in to the FBI, placed on a table for photographing. L55376548B is shown in that photo as the top bill in one of the twelve groups photographed.
However, this photo does not show four more bills the Ingrams held back from the FBI as souvenirs, but were convinced to turn in later!
L55376548B may be one of the serial numbers Harold called in, because it was easily seen being the top bill in one group of bills he had. He may have called in other serial numbers from top bills in other groups we can see in the Getty photo. Only the FBI knows for sure what serial numbers Harold called in, and how many numbers, or what he actually said during his two phone calls.
In Flyjack's photo of L55376548B there is a MC or MV and a line in ballpoint ink on the bill. It intersects the T in TWENTY on the right side of the bill. Im not sure I see that artifact in the Getty photo - do you? So there is one more thing to puzzle over, and make claims about perhaps?