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 Replies: 71 / Views: 12,281 |
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Bedrock of the Community
Australia
21788 Posts |
I can't quite make out what the file marks on Abe's shoulder and coat may mean. If the coin had been filed, the zinc core would have been exposed. Because it isn't, I have to go with the flow and say; 'lightweight blank', before it was made into a planchet. That still doesn't explain how the file marks may have affected the weight, and why they should even be there at all, if the blank had been rolled too thin. The blank could have been filed, before it was plancheted, then struck into a coin. Leads me to thinking it may be a mint sport, but why?  That would help to explain that it could be a solid bronze or brass planchet; color would help to confirm. The blank could have been filed before it was plancheted then struck into a coin. That would help to explain why it has not been fully struck up. What of the possibility that it could be failed fake of a double die 1983 Cent? It seems the the blank, was thicker in the center than on the outer edge before filing. Forgive me for having more questions and speculations than answers. Perhaps I would have been better at writing UFO books!  Edited by sel_69l
09/16/2017 08:54 am
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Pillar of the Community
 United States
1901 Posts |
The problem is I don't know how to answer those questions Edited by Mrzllewellyn
09/16/2017 09:12 am
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Pillar of the Community
United States
1901 Posts |
If you can inform me on how to answer your questions we could figure this thing out
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Pillar of the Community
United States
2775 Posts |
Quote:
I can't quite make out what the file marks on Abe's shoulder and coat may mean. I'm thinking they're the combination of roller marks that are accented by the early plating issues known to show on early zinc cents w/copper plating. Had the planchet been full weight, it would have filled in the bust and been less noticeable after strike. Believe the tolerance for zinc cents w/copper plating should be +/- 0.10 grams. Thanks, Doug. Adding - the tolerance for a copper cent should be +/- 0.13 grams. Judging by appearance I believe this coin is a zinc coin plated with copper, but if interested or concerned it maybe copper or other alloy you might try the following. http://goccf.com/t/39666edit - my wording above to, "zinc cents w/copper plating" which previously seem confusing and may have suggested zinc plating. Edited by Halo1st
09/16/2017 5:45 pm
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Pillar of the Community
United States
1901 Posts |
I hate to say it but I dropped the penny... I did the drop test or whatever to listen to the sound it sounded like the copper penny with a ring the zinc one had no ring to it
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Pillar of the Community
United States
1901 Posts |
How do I go about finding out more about this coin? If I have something here worth something or if I just have a messed up counterfeit or what? Will that thing halo actually tell me what it's made of if it's not a full weight coin?
Edited by Mrzllewellyn
09/16/2017 5:18 pm
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Pillar of the Community
United States
2775 Posts |
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How do I go about finding out more about this coin? If I have something here worth something or if I just have a messed up counterfeit or what? Do not think its counterfeit. Thinking a weight difference will produce a different sound using the drop test. It may just be me, but dropping a copper coin or a copper plated zinc coin makes a different sounding thud. I don't pick up any ring tone like a silver coin makes. Quote:
Will that thing halo actually tell me what it's made of if it's not a full weight coin? Believe a "XRF" test or "specific gravity" test are the only suggestions or terms I've read about here used to determine the elemental composition or density of materials. Search both subjects from the main forum to find more info. Thanks, Doug. Edited by Halo1st
09/16/2017 7:15 pm
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Pillar of the Community
United States
1901 Posts |
Where can I get a xrf test done?
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Pillar of the Community
United States
3463 Posts |
If it were Copper, it would be heavier, not lighter. It looks like a thin planchet error to me. Nice find!  Don't drop your coins!  Dropping them causes dings and other damage, and is not reliable. EDIT: You can do a specific gravity test as shown on this page: http://lincolncentsonline.com/Coppe...%20Zinc.htmlEdited by cwb
09/16/2017 9:59 pm
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Bedrock of the Community
United States
12477 Posts |
Everything described and what I see tell me that it was struck on a thin copper-plated zinc planchet. I don't think there's really a need for further testing. Nevertheless, it's definitely a cool find and a keeper! In Memory of Crazyb0 12-26-1951 to 7-27-2020
In Memory of Tootallious 3-31-1964 to 4-15-2020
In Memory of T-BOP 10-12-1949 to 1-19-2024
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Pillar of the Community
United States
1901 Posts |
I'm going to figure out if it's a thin brass or copper plachet or a copper coated zinc planchet for a fact before I quit this endeavor lol
The only thing I keep thinking is copper ended in 82 it's a 83 could have been punched out of what was left of copper and it was thin.. just my thoughts but I over think a lot sometimes but I want a for sure it is copper or a for sure it is plated zinc you know.
Edited by Mrzllewellyn
09/16/2017 10:48 pm
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Pillar of the Community
United States
1901 Posts |
I'm going to check the specific gravity when I get off work in the morning my scale only does to 1/10 of a gram but I figured it out if it is .2 it would be copper and if it's .3 it will be zinc so I will let you guys know I don't have a more accurate scale to 1/100th so this will give me a close enough reading to if I need to send it somewhere to maybe get slabbed because if it's copper and underweight it would be a sweet find and if it's zinc underweight it's still a sweet find but it's me to want to know without a shadow of a doubt if it is one or the other but I don't know who I would send it to.
Thanks everyone for the help and I will let you guys know what I find out in the morning
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Rest in Peace
10197 Posts |
The ONLY way to determine actual metallic composition would be XRF reading all the way into the coin other than taking a core sample and destroying the coin. A jewelry store may have a machine or at least direct you towards one, be prepared to open your wallet quite wide, my friend! It'll cost ya to find out its just a thin planchet stock with an incomplete strike I all.  |
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Bedrock of the Community
United States
12477 Posts |
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I over think a lot sometimes I'm with you on that one.  Quote:
I'm going to check the specific gravity when I get off work I think that should provide enough information to call it. You may also want to do an SG test on a normal weight copper and zinc for comparison.  In Memory of Crazyb0 12-26-1951 to 7-27-2020
In Memory of Tootallious 3-31-1964 to 4-15-2020
In Memory of T-BOP 10-12-1949 to 1-19-2024
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Pillar of the Community
United States
1901 Posts |
 I definitely will do a copper and a zinc to compare too and I think it will give me enough info to tell me if I want to open my wallet wide lol I will keep you guys updated on my journey |
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Replies: 71 / Views: 12,281 |
First Page
Posted 09/16/2017 09:01 am
