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1970-D Penny Very Off In Color And Sound Sounds Higher Pitched When Spun On

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 Posted 02/14/2021  07:52 am Show Profile   Bookmark this topic Add Adam C vance to your friends list Get a Link to this Message
This is my wherd 1970-D penny that looks like no other 1970-D I have ill take a picks of a normal 1970-D then this wherd off bronze poor gold looking 1970-D penny it has a higher pitched sound when spun on a glass tabel its the only test I could do bc I left my coin scale at a friends looking at his collection





Edited by Adam C vance
02/14/2021 08:24 am
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 Posted 02/14/2021  08:50 am  Show Profile   Bookmark this reply Add T-BOP to your friends list Get a Link to this Reply
To CCF , A copper Lincoln cent doesn't sound any different when spun around on a glass table from an other copper cent .
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 Posted 02/14/2021  09:59 am  Show Profile   Bookmark this reply Add Chase007 to your friends list Get a Link to this Reply
I'm not sure which one is the coin in question, but if you are referring to the bottom coin,it shows an environmental damage/heavy staining which has been harshly cleaned, all that contribute to the look it has today although there are examples of Brass plated strike cents but yours is doesn't look like is one of them.
Example below by Ken Potter.
Edited by Chase007
02/14/2021 10:00 am
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 Posted 02/14/2021  10:10 am  Show Profile   Bookmark this reply Add Coinfrog to your friends list Get a Link to this Reply
Guessing this is just environmental toning/staining.



too the CCF!
Edited by Coinfrog
02/14/2021 10:10 am
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 Posted 02/14/2021  10:20 am  Show Profile   Bookmark this reply Add Spence to your friends list Get a Link to this Reply
@acv, can you please post the weight of this coin? Thx.
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 Posted 02/14/2021  10:56 am  Show Profile   Bookmark this reply Add Dearborn to your friends list Get a Link to this Reply
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 Posted 02/14/2021  12:27 pm  Show Profile   Bookmark this reply Add Adam C vance to your friends list Get a Link to this Reply
Light dont do the coine justis and I shall deffiantly Wahigh the coine I'm quite interested in it just bc I have here is a different photo hopefull it will bring out its wherd and I compaired it to 3 of my 4 1970-D here are the picks




Edited by Adam C vance
02/14/2021 12:30 pm
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 Posted 02/14/2021  12:42 pm  Show Profile   Bookmark this reply Add ijn1944 to your friends list Get a Link to this Reply
Given the photos provided, I see a range of common, circulated '70 D memorial cents. Copper cents take on a variety of coloration over years of circulation--some coins gather crud, some are exposed to different 'corrosive' environments (which can result in environmental toning), some coins are cleaned by well-meaning people, some coins are colored-in by kids (and the coloring partially wears off), etc.

The more Lincoln cents one comes across, the more variety in appearance one will see. I've been searching Lincoln cents for decades and have seen quite a variety when it comes to coloration/appearance.
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 Posted 02/14/2021  1:30 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Check to see if the coin is normal weight? That can affect the sound. The color can be altered with using the wrong solutions on it. (Also can thin a coin and weaken the devices if an acid is used)
Copper cents and zinc cents do sound different on a table.
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 Posted 02/14/2021  1:31 pm  Show Profile   Bookmark this reply Add Chase007 to your friends list Get a Link to this Reply
Looks like it was a buried coin at one time and the chemical reaction due to the soil and moisture have done their number on this coin before it was cleaned.
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 Posted 02/14/2021  1:31 pm  Show Profile   Bookmark this reply Add Adam C vance to your friends list Get a Link to this Reply
Thank you now I know I did not know about ccorrosive where on a coine thats pretty neat
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 Posted 02/14/2021  1:56 pm  Show Profile   Bookmark this reply Add Rothery to your friends list Get a Link to this Reply

Quote:
Light dont do the coine justis and I shall deffiantly Wahigh the coine I'm quite interested in

If you are running a voice recognition program you might want to see if it's operating properly also.
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 Posted 02/27/2021  9:17 pm  Show Profile   Bookmark this reply Add Adam C vance to your friends list Get a Link to this Reply
No I'm sorry I'm just not good at English even tho it's my primary language I was just pushed ahead every year with Ds and Fs on my report card because I was older than the other students I'm sorry for my bad grammar I'll try to find a voice to text soft where......and I'm still working on getting the scail its hard when my friend works and wrecked his car this winter and my room mate works and granny can't walk or get out any more and we only have one car I'm sorry I'll do my best to get it tonight if not tomorrow if there booth off work
Edited by Adam C vance
02/27/2021 9:26 pm
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 Posted 02/27/2021  11:10 pm  Show Profile   Bookmark this reply Add silviosi to your friends list Get a Link to this Reply
In fact the "copper" penny is tombac. In that year was 95% copper and 5% zinc. This alloy is tombac.

quote: "modern enamel tombac or emailer tombac - an alloy of 95% copper and 5% zinc, suitable for enameling, therefore the name".

Probably the coin was clean with some kind of acid and come back to the melt state colour.
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 Posted 03/09/2021  08:04 am  Show Profile   Bookmark this reply Add Adam C vance to your friends list Get a Link to this Reply
Sorry y'all I'm trying to keep y'all up dated on the status of getting my coin scale back so I can post the right weight but things have not been the smoothest at home roommate can't drive any more bc he was busted driving with out a license and we had to spend somewhere near 700 to get it out of impound and my buddy wills car is still trashed from this winter when he slid Into a curb and broke his front right axle and now his car will not stay straight on the road soo his car is out my roommate can't drive my grandmother can't drive I don't have a license and my scale is in another town as soon literaly as soon as I get the scale I will posts the weight of the 1970-D penny that looks like some kind of acid damage with heavy scrubbing
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 Posted 03/09/2021  09:24 am  Show Profile   Check Tanman2001's eBay Listings Bookmark this reply Add Tanman2001 to your friends list Get a Link to this Reply

Quote:
modern enamel tombac


Enamel? That's not what coins are made of at all.

Tombac for coins has a higher zinc content. For example, the Canadian nickels of 1942-1943 that were Tombac were 88% copper and 12% zinc. According to Wikipedia (where Silvio got his quote) the correct name for the US cent's 95/5 alloy is "Gilding Metal".

But that's unrelated to the original question anyways. I agree that this coin appears like some sort of environmental damage, some chemical reaction discolored the coin, then it was either cleaned or worn down by circulation.
Edited by Tanman2001
03/09/2021 09:25 am
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