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All Forums Category: Canadian Coins and Currency Forums Forum: Canadian Variety and Error Coins

1978 Penny Wrong Planchet

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Author	Replies: 16 / Views: 1,789	Page 2 of 2

JimmyD Bedrock of the Community Canada 18272 Posts	Posted 03/25/2023 12:11 pm If it was a dime planchet, it would be nickel coloured, magnetic and weigh 2.07 grams. Also it would not be fully formed as a dime planchet is smaller. Really need the weight to two decimal points. Report this Post to the Staff
halfamind Pillar of the Community United States 930 Posts	Posted 03/25/2023 12:16 pm Possibly plated after minting, but without a weight it's hard to know. Report this Post to the Staff
Coinfrog Bedrock of the Community United States 81585 Posts	Posted 03/25/2023 12:17 pm to the CCF! Report this Post to the Staff
john100 Pillar of the Community Canada 5141 Posts	Posted 03/25/2023 1:21 pm Looks kind of good, it seems a little off center but as mentioned a weight would be most important Report this Post to the Staff
mice45 Valued Member Canada 72 Posts	Posted 03/25/2023 1:34 pm It could be result of exposure to some chemicals. Some years ago I did a study on how coin cleaning affects the surface and the color of copper coins. The coin in the photo looks the same color as after being dipped into a common polisher named "Brasso" which is ammonia based Short exposure to ammonia (no rubbing!) gives copper (bronze, to be accurate) cents the color of an old brass. Report this Post to the Staff
chadcoins Pillar of the Community Canada 712 Posts	Posted 03/25/2023 2:19 pm Here it just took me minutes to do this, regular 1978 1 cent and one with a Brasso soaked / cleaned 1978 [ 2 minute soak]. Note the difference in colors. Report this Post to the Staff
thynium New Member Topic Starter Canada 23 Posts	Posted 03/25/2023 2:25 pm Ok thx alll , ill go check the exact weight and brb with pictures. Report this Post to the Staff
robmck1967 Pillar of the Community Canada 853 Posts	Posted 03/27/2023 2:02 pm We will need the weight and pictures out of the 2x2 flip so we can see better details on the coin. I think I see weak letters on both reverse and obverse which could point to an under sized planchet. It could be on a dime planchet or a foreign planchet since RCM minted for many countries. Report this Post to the Staff
chadcoins Pillar of the Community Canada 712 Posts	Posted 03/27/2023 3:56 pm If you check the French Site under the 1978 1 cents, they have one there that looks identical. https://www.coinsandcanada.com/coin...989#erreur-4 Report this Post to the Staff
thynium New Member Topic Starter Canada 23 Posts	Posted 03/28/2023 9:53 pm Hi all , the weight is 2.66gr now I'm going check tuto how make picture side by side sry :(()) Report this Post to the Staff
johnnysprawl Pillar of the Community Canada 1351 Posts	Posted 03/28/2023 11:02 pm Could be struck on a Bangladesh 25 Poisha planchet, which weighs 2.7 g and has a 19 mm diameter. Report this Post to the Staff
john100 Pillar of the Community Canada 5141 Posts	Posted 03/28/2023 11:18 pm Not on a dime, now you need an XRF Report this Post to the Staff
chadcoins Pillar of the Community Canada 712 Posts	Posted 03/29/2023 11:40 am thynium - Here's one I just got back from getting certified and its in the same league as yours. Maybe give CCCS a call, hes the only one in Canada to Certify this for you. Note how we identified the planchet. Would be nice to zap that coin first before sending it in and identify the country of origan for that planchet. Do your CSI work to perfection [Coin Seen Investigation] It will be well spent time and money on your part. You got some thing special there!! Report this Post to the Staff
thynium New Member Topic Starter Canada 23 Posts	Posted 04/26/2023 2:14 pm Hi , was a long time sry was busy big time . But when you says "nice to zap that coin first before sending it in and identify the country of origan for that planchet." What you do mean exactly ? I'm from quebec and my english doesn't understand that lol Report this Post to the Staff
okiecoiner Pillar of the Community Canada 4864 Posts	Posted 04/26/2023 3:43 pm "Zap" means to have an XRF done on it. Coin dealers and some scrap yards would have an XRF that gives you the exact metallic alloy in the coin. Some colleges local may have one as well. Report this Post to the Staff
Page 2 of 2	Replies: 16 / Views: 1,789

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