Found 1984-P dime in uk pocket change

Found this in amongst my change. Was given it as a UK 5pence. As im still a newbie any info would be gratefully appreciated. The colour changes on the edge but looks to straight to be environment damage. Thanks

 

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It's what's commonly called a "clad" coin. It's like an Oreo cookie, a core of 100% copper sandwiched between two layers of a copper/nickel alloy. US dimes (10 cents), quarters (25 cents), half dollars (50 cents) and some $1 coins have all been manufactured like that since 1965.

 

Some proper images

 

Thanks rickmp. So the edge is just the cupronickel worn away. I thought it looked a bit straight to be environmental damage

 

Even when freshly struck, they show the copper core at the edge.

 

I think this is what hes talking about

 

maybe a collar error

 

After Canada, the UK is the second most common country I find coins in roll searches from. I get 1p as cents, 5p as dimes and 20p as nickels. I believe now I have over six quid worth of British coinage from roll searches. I have even occasionally gotten 5p in change as a dime.

 

Mike Diamond, where are you lol

 

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