I know exaclty what is going on here, and why it is going on.
Larsen and his JFK CT nutcase disciples in the Order of the Bleedin' Fruitcake are absolutely desperate to make that money-order a forgery, because they know that if they cannot, then Oswald is 100% proven to be A. Hidell, and therefore 100% proven to have paid for the gun he ordered from Klein's Sporting Goods, and therefore, he owns the gun that killed the President.
To that end, they will clutch at any straw, no matter how thin, right down to making up their own unique interpretations of Federal Regulations that they have no understanding of, or moving the goalposts by changing what they previously claimed when they find it insufficient to back their spurious claims. This includes, telling a lawyer of 30+ years experience that he doesn't now how to read Federal regulations, and telling a banker that he doesn't know about bank procedures. They are even claiming an interpretation that is the exact opposite of the wording of the regulations.
And as for manifesto's very strange interpretation of the meaning of "any bank", well that is really unique, and totally out of left field... he reminds me of Homer Simpson...