I am still exploring this in light of Jesus
killing the fig tree - cancelling value in Jerusalem during his coronation.
This rendition may be more clear.
I have made small attempts to find the Postmaster of the Contract in the UN's UPU Constitution online. I see nothing at a blush, but challenge people to look into that. I heard about cancelling the postage stamp with your signature years ago in that context but I don't think it comes from there.
It is signature of the original estate. In a world of debt currency, the sovereign stands in authority to cancel value in money. In other words if you don't know what your authority is exactly, you might risk felony charges for destroying "defacing" money. Postage stamps are lawful money. If you cancel stamps in front of the federal judge he might have a mind to report that to the attorney general.
The postal clerk has the authority to cancel money (postage stamps) under the postmaster as agent. The clerk handing you her stamp is significant, or not. Depending on her knowledge of Seal Driver. That is an old term for the guy in the hull with timber and pitch during a battle or storm, keeping the ship afloat. But it has no record unless you want to trust in God and two witnesses, or subpoena her to a hearing. Nobody can see who's hand was driving seal.
If she handed you the rounddate stamp and you said,
Nevermind! and grabbed the little black ballpoint on the chain there, and signed through it instead, maybe...
Regards,
David Merrill.
Thought- provoking! I have not read that yet though.