1975 Half Penny In Differnet Metal Alloy

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Author	Replies: 2 / Views: 2,284
macmercury Pillar of the Community United States 5832 Posts	Posted 02/07/2010 11:30 pm 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 Report this Post to the Staff

Sap Moderator Australia 16834 Posts	Posted 02/07/2010 11:44 pm 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. Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis Report this Post to the Staff
Nic Pillar of the Community Philippines 1156 Posts	Posted 02/08/2010 02:15 am 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 Report this Post to the Staff
	Replies: 2 / Views: 2,284

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