It's highly unlikely that rare dimes and ancient bicentennial quarters valued at $23 million each would still be in circulation.
Coins of such extreme value would typically be carefully preserved in collections or museums, rather than circulating freely among the public.
While rare coins can occasionally turn up in circulation due to oversight or lack of knowledge about their value, coins valued in the millions are exceptionally rare finds.
If such coins were to surface, they would likely attract significant attention from collectors, numismatists, and the media.
It's essential to be cautious about claims of extremely valuable coins still being in circulation, as they often turn out to be exaggerated or misleading.
However, discovering valuable coins in everyday circulation can still be exciting, even if they're not worth millions!