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 Replies: 21 / Views: 2,244 |
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Rest in Peace
United States
3730 Posts |
Yesterday I found my second 2007 coin in circulation. It was a Lincoln Cent. I just happened to place it between two older cents, one from the 1970's and the other from the 1980's. The 2007 coin appeared noticibly thinner. Is there a difference in thickness?  |
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Valued Member
United States
169 Posts |
hm, out of curiousity, I stacked up all the 2007 cents I had and compared it to a similar stack of pre 1982 copper pennies. Here's a photo.. even if not officially thinner, they definitely are. Not sure how the 2007 is compared to the 2006 though.  Edited by yavaris
03/14/2007 7:52 pm
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Pillar of the Community
United States
4589 Posts |
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Pillar of the Community
United States
834 Posts |
Well the 82's weight 2.5 grams and the 2007 weight is 2.5 grams so to tell you the truth I just don't know that is very interesting Gary  Bruce. |
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Pillar of the Community
United States
1626 Posts |
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Pillar of the Community
United States
834 Posts |
Yauaris.
Did you try and set one of the 2007's inside the 82's to see if the new ones where larger in size our more round ?
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Rest in Peace
 United States
3730 Posts |
Thanks for experimenting.
It is strange, but interesting.
Glad I'm not seeing things!!
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Pillar of the Community
United States
2271 Posts |
Coin thickness varies from year to year and is dependent on striking characteristics and upsetting primarily. Weight is determined by size and strip thickness which does not vary from year to year (normally).
Time don't fly, it bounds and leaps.
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Valued Member
United States
169 Posts |
nope...I can try that tomorrow though
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Member
United States
3242 Posts |
I know that since 1999 the copper coat over zinc has been made thinner and added more zinc to keep the weight up to 2.5gm to cut cost of copper I know you can stack 50 1998 next to 50 1999 and see an difference  |
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Valued Member
United States
383 Posts |
quote:
Well the 82's weight 2.5 grams and the 2007 weight is 2.5 grams so to tell you the truth I just don't know that is very interesting Gary
Bruce.
Actually Bruce it is 3.1 grams for the '82. He said 1982 copper but I do not know if that should effect the thickness. |
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Valued Member
United States
169 Posts |
Diameter test:  Doesn't seem like much difference. I think the pre 1982 coppers are also less uniformly thick compared to the 2007s. Not sure if that should affect the average thickness much. I stacked 4 2007s next to 4 2006s (all I have left...) and they seemed about the same. |
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Member
United States
1154 Posts |
Could it be that older cents have more wear? making them smaller?
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Valued Member
United States
169 Posts |
how to explain that the 2007 ones are thinner then? :)
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Valued Member
United States
383 Posts |
I have a digital micrometer and a bu roll of '82 copper cents. I'll check some this weekend for thickness.
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Valued Member
United States
169 Posts |
cool... I know the engineering labs have calipers, but I don't think I can borrow one to measure coins, haha
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Replies: 21 / Views: 2,244 |
Posted 03/14/2007 9:12 pm
