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 Replies: 10 / Views: 3,606 |
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Pillar of the Community
Canada
2784 Posts |
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Pillar of the Community
United States
869 Posts |
What is the weight? A copper Canadian 1973 cent should weigh 3.24 grams. Gold is a much denser metal and would weigh more. Did the RCM ever strike a gold commemorative coin based on the one cent piece? Edited by flag4
10/21/2019 11:11 pm
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Pillar of the Community
 Canada
9862 Posts |
No proofs were struck in 1973.
Your coin is from a specimen strike set.
Acetone will clean it if done properly.
No copper cents were struck before this century, they were all bronze.
The red fuzz is what has caused your coin to appear yellow, it's environmental damage and quite common in these sets.
"Dipping" is not considered cleaning...
-from PCGS website
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Pillar of the Community
Canada
1984 Posts |
Yes...terrible PVC damage. This one is hopeless. Don't risk the acetone exposure on this.
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Pillar of the Community
Canada
5585 Posts |
It's .98 copper with a little zinc and tin added to make it bronze. Nearly 1/2 billion minted. It's damaged specimen. Do what you can to make it purdy, including acetone, but it's worthless numismatically.
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Pillar of the Community
 Canada
2784 Posts |
thank you all so very much. chhemical reaction thank you yes its like this coin is weightless, its so light again thankl you all
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Moderator
 Canada
10456 Posts |
The bane of the red fluff in the 1973 double dollar Prestige sets. It is actually quite hard to get a nice 1973 specimen strike in full, bright red... even ones saved in time tend to be toned.  "Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert OppenheimerContent of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_USMy eBay store
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Pillar of the Community
Canada
818 Posts |
Been there, done that. Try peanut butter, or Skin-so-soft. The oil in them can dissolve most sticky stuff (gets tape, glue residue, and sticky stuff off almost anything). I tried Release-All rust remover, which is also oily, and it got it all off, but I left it soaking too long and the coin went shiny brown. Rub the coin gently with your finger (coin is already useless and your skin is softer than bronze so...), for as little time as possible. Rinse with hot water to get the oil off, don't use soap, and cold water won't rinse it well. Dry it and protect it before it gets colourful like mine (some red and purple).   Edited by TerryT
10/22/2019 5:16 pm
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Pillar of the Community
Canada
2784 Posts |
thank you all so much for your help and suggestions.i am going to try to clean this coin. simply because its in such bad shape. good coin for me to try.
terry t thank you another place where cold cream really works great camera lens.thank you so much for that
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Pillar of the Community
Canada
5585 Posts |
Try Goo-Gone on a section of it. It removes ALL oily, sticky, gluey from surfaces
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Pillar of the Community
Canada
1984 Posts |
Okie & Rocky I think this one is well into the hard green phase where goo gone, WD40 etc will not work. Best case you will end up with a highly compromised coin of no value. But I think most of this green will stay put.
I had a good case today of a coin with minor early stage hardening. Maybe 5% of the surface. Sorry but I too no before photos. Verdicare cleaned it up fully.
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Replies: 10 / Views: 3,606 |
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Posted 10/21/2019 11:16 pm
