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 Replies: 14 / Views: 1,023 |
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Pillar of the Community
United States
6114 Posts |
Ever wondered what that grease looks like that is struck through so many coins? Well here it is. A big ol' glob on the obverse of somewhat dirty grease, and what looks like a struck through on the reverse lower memorial area is actually another glob of much more clear grease. This is from an unopened BU roll so I am sure it is from some of the machinery that either minted or rolled the coins, but can't say which. But since it was a random coin in the middle of the roll I'm just guessing it is the same mint grease that coins get struck through. 1964 Lincoln Memorial cent - grease    |
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Moderator
 United States
34418 Posts |
That is interesting @tb. I think we have seen the clear grease on coins previously posted, but I don't recall seeing gritty grease before.
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Bedrock of the Community
United States
19168 Posts |
Looks like a glob of dried apple butter from a mint worker's sandwich.
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Pillar of the Community
United States
1173 Posts |
Nice example, thanks for sharing.
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Pillar of the Community
United States
5779 Posts |
Nice! Those areas of grease are enormous compared to ones I've come across.
I've had some with the clear/white grease and darker grease as well.
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Pillar of the Community
Canada
3328 Posts |
Yikes, that's some dirty grease. Very cool.
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Bedrock of the Community
United States
94367 Posts |
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Pillar of the Community
United States
1204 Posts |
Interesting. So the design is gone under that. Very cool, and that is some very old grease. Rolls must be very low oxygen in the center for it to even look that good after nearly 60 years.
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Moderator
United States
188770 Posts |
 Impressive example!  |
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Bedrock of the Community
United States
62064 Posts |
The obverse looks more like glue on the coin? Note how you can see through and see the devices below the glue.
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Moderator
United States
188770 Posts |
Quote:
The obverse looks more like glue on the coin? Note how you can see through and see the devices below the glue. Now that you say that, I can see it.  |
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Moderator
United States
96467 Posts |
I would think that if this coin was in the middle of a roll, you would see an impression of the next coin in the roll on this grease. After all, that stuff does look fairly thick.
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Bedrock of the Community
United States
10635 Posts |
Very cool, Bats! |
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Pillar of the Community
Canada
891 Posts |
Nice Greaser , grease is somewhat transparent |
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Pillar of the Community
 United States
6114 Posts |
Thanks for all the interesting comments! I had never considered it might be Struck Through Grease, just has a gob of mint grease on it like what would be on a planchet or the die to create a struck through. I pulled it back out and yes, it's a glob of grease, not a struck through. Not sure if they show up in the close up image, but at high magnification you can see quite a number of tiny copper flaky fragments stuck to the grease, making it what would likely be "gritty grease" just as Spence notes. That's what I tried to say with the original posting, but maybe wasn't as clear as I should have been. Glob of dirty grease similar to what would cause a Struck Through Grease coin, which this is not. |
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Replies: 14 / Views: 1,023 |
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Posted 12/08/2021 07:43 am
