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Newer 'coppers' are magnetic, older ones are not. https://www.royalmint.com/stories/collect/why-are-some-uk-coins-magnetic/ https://www.royalmint.com/stories/c
by joncrocks 3y ago
Newer 'coppers' are magnetic, older ones are not.
https://www.royalmint.com/stories/collect/why-are-some-uk-coins-magnetic/ https://www.royalmint.com/stories/collect/why-are-some-uk-co... - the composition of 1p and 2p coins was changed from bronze to copper-plated steel in 1992 and the composition of 5p and 10p coins was changed from cupro-nickel to nickel-plated steel in 2011