Idenumia
Coins, paper money, or exonumia of which the obverse and/or reverse design features an identical design from another coin, piece of paper money or exonumia of a different denomination.
"This Decimal Day 2021 50p has all the old pre-decimal coins on it, is there a term for coins like this?"
"Yes, idenumia coins, banknotes, etc have design(s) of other numismatic item(s) on it. Like how you'd use the word 'piedfort' to describe a coin that's double the regular thickness."
"Yes, idenumia coins, banknotes, etc have design(s) of other numismatic item(s) on it. Like how you'd use the word 'piedfort' to describe a coin that's double the regular thickness."