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 United Kingdom (Great Britain) Coins

1975 Half Penny in differnet metal alloy

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macmercury
Valued Member


United States
268 Posts

Posted 02/07/2010  11:30 pm  Show Profile  Check macmercury's eBay Listings Bookmark this topic Add macmercury to your friends list  Get a Link to this Message

Good Evening All,

I bought a bulk world lot on eBay and came across this 1975 half penny that I am unable to locate in the standard world catalog. And here I am searching the forum but still no luck.

Picture below is what the proper bronze half penny at right and the one on left what looks to be either clad or copper nickle, was there proof make with this version.

The obverse been scratch when I discover it, also the images on both side seem to be slightly larger, but the diameter is the same. Its weight is 1.82g.






Edited by macmercury - 02/07/2010 11:42 pm
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Sap
Moderator
Coin Community SupporterSupporter!


Australia
5497 Posts

Posted 02/07/2010  11:44 pm  Show Profile Bookmark this reply Add Sap to your friends list  Get a Link to this Reply

It's extremely unlikely to have come out of the mint like that. The most probable explanation is that it's been plated.

I have a zinc-plated Australian 2c coin. I know it's zinc-plated because my dad made it in a chemistry demonstration.


It's easy to be a saint in paradise. - Captain Sisko, "Star Trek"
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Nic
Pillar Of The Community


Philippines
830 Posts

Posted 02/08/2010  02:15 am  Show Profile Bookmark this reply Add Nic to your friends list  Get a Link to this Reply

Yes sap, same here, in my younger days, when mercury poisoning wasnt given much importance, I used to plate coins white by rubbing them with mercury using my bare fingers (yay!), it would come out looking shiny chrome, good thing my curiosity went quickly elsewhere into the safer silver plating by electrolysis using just an ordinary silver coin as the silver source.

Yes, that coin could be the result of some plating exercises, by some curious minds


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