The defacing law doesn’t spell that out, and is open to interpretation that can include propaganda, not just fraud. So the people who stamped the OP coin would have been prosecuted for defacing currency even though the stamp had nothing to do with fraud.
Nobody in government cares about the tourist penny kiosks, though.
That’s true until you do what’s in the OP here.
The defacing law doesn’t spell that out, and is open to interpretation that can include propaganda, not just fraud. So the people who stamped the OP coin would have been prosecuted for defacing currency even though the stamp had nothing to do with fraud.
Nobody in government cares about the tourist penny kiosks, though.