Posted 06/12/2020 11:24 pm
Any new technology that can help identify a fake is useful.
Vending machines rely heavily on the electromagnetic signature of the coin. That would be difficult to fake, especially given the multi-ply steel. This wouldn't be a cheap solution, but would be an effective, quick solution for merchants. (The Ryedale Sorter, used to separate bronze US Memorial Cents from zinc US Memorial Cents is an example of this approach.)
Specific gravity would also be useful to identify a fake, but is time-consuming and definitely unwieldy in commercial settings.
The virtual image, edge lettering, and micro-engraving can be counterfeited, with difficulty. Merchants who handle enough of the genuine coins should have a decent sense of when these elements look wrong.
Vending machines rely heavily on the electromagnetic signature of the coin. That would be difficult to fake, especially given the multi-ply steel. This wouldn't be a cheap solution, but would be an effective, quick solution for merchants. (The Ryedale Sorter, used to separate bronze US Memorial Cents from zinc US Memorial Cents is an example of this approach.)
Specific gravity would also be useful to identify a fake, but is time-consuming and definitely unwieldy in commercial settings.
The virtual image, edge lettering, and micro-engraving can be counterfeited, with difficulty. Merchants who handle enough of the genuine coins should have a decent sense of when these elements look wrong.
to the Community! 
