[WalterBright]

My favorite story is that of Jose Beraha Zdravko. He counterfeited the British gold sovereign, and his genius was putting more gold in them than the originals. His "Beraha Sovereigns" fetched a higher price than the official sovereign, more than the value of the extra gold.

Tired of this humiliation, the British tried him for counterfeiting. He countered that only legal tender could be counterfeited, and sovereigns were no longer legal tender. He won the case.

"Money of their Own" by Murray Teigh Bloom