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I have noticed that a lot of old 10p coins are noticeably a lot thinner (presumably worn down rather than starting out thinner) Prior to about 2010, 5p and 10p
by Reason077 10y ago
I have noticed that a lot of old 10p coins are noticeably a lot thinner (presumably worn down rather than starting out thinner)
Prior to about 2010, 5p and 10p coins really were thinner. They were changed from copper/nickel alloy (Cupronickel) to nickel-plated steel to reduce costs. But in order to maintain the same weight, the coins had to be made thicker.