funkmachine7 t1_j6gqmva wrote
Reply to comment by Gathorall in TIL coins in the UK almost always switch the way the monarch is facing with each monarch with King Charles III facing left. by AudibleNod
The old Carolingian monetary system of 1:20:240 and 1 being a pound mass of silver was the base for most of europes coinage.
The conversions where based on getting back to that pound of silver an so effected by purity an weight of the two coins.
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