From Quora.. just some guys idea but I did not know about Grant. Emphasis added.
The pardons had again not been placed in the hands of the criminals but.. given that this was also the loophole in Bush's revoking.. it the need to accept the physical paper, also accepting guild without right to appeal, actually that important?
"No. At least, in the way most of us think of it. Although, there is a weird technicality in our history where it sort of did happen. I doubt it would ever repeat itself (but hey, you never know).
President Grant rescinded two pardons that Andrew Johnson had given. Here is what happened… Andrew Johnson issued the two pardons, and “sent” them. The two pardons apparently were passed through the chain of command, but when they reached the desk of the warden of the actual prison where both men were being held, the warden apparently “allowed them to sit on his desk.” They sat.
Here is a description, much better than I could describe it:
“Ulysses S. Grant's first clemency decision, on his third day in office, was to revoke two pardons granted by Andrew Johnson. Both men challenged Grant's power to do so, and lost their case in federal court. A central passage in a judicial opinion read:
“ ‘If the president can arrest the mission of the messenger went the messenger has departed but ten feet from the door of the presidential mansion, he can arrest such mission at any time before the messenger delivers the pardon to the warden of the prison.’
“The fact that "the president" - in this case - meant two different presidents (Johnson and Grant), and the fact that - in this case - the warden had actually received the pardons but simply stuck them in his desk for a while, did not matter. The pardons had not actually been placed in the hands of Moses and Jacob DePuy, so the two men stayed in prison and were pardoned (by Grant) later.”
[Me again:] So, Grant revoked them. Because, they gathered dust on a desk, on the blotter right under that copy of the Warden’s dime novel. The two men learned of it, and took it to court. The court ruled “Sorry! Stay in your cells!” Then, Grant gave them both the pardon, anyway… after awhile."