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<p>[QUOTE=&quot;Numbers, post: 3842563, member: 11668&quot;]This will almost certainly never happen.&nbsp; You can do this sort of thing with coins without impairing their usefulness in circulation: there may be upward of 100 different designs of quarters circulating now, but a vending machine can accept them all with no problem.&nbsp; That wouldn&#039;t work with currency designs, since machines scan the design itself to validate the note.&nbsp; Commemorative banknotes wouldn&#039;t work in vending machines, self-checkouts, or (more importantly) banks&#039; currency counters or the Fed&#039;s currency-processing equipment.&nbsp; They&#039;d require special manual handling at every step.&nbsp; No way the cost would be worth it.[/QUOTE]</p><p><br /></p>

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