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2019-D LSC- Perfect Spherical Depression

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CoinHunter27's Avatar
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5887 Posts
 Posted 10/12/2019  8:44 pm Show Profile   Bookmark this topic Add CoinHunter27 to your friends list Get a Link to this Message Number of Subscribers
Found this among so far 15 2019-D DDO-001s. It's a perfect spherical depression. There is no true way to know if this was a Rockwell hardness test, but I figured I'd post it. Thanks for looking!

-CH27

2019-D-LSC--Perfect-Spherical-Depression
2019-D-LSC--Perfect-Spherical-Depression
2019-D-LSC--Perfect-Spherical-Depression
2019-D-LSC--Perfect-Spherical-Depression
Collector of U.S. Coins, Varieties, and Colonial Coinage
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CoinHI's Avatar
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2748 Posts
 Posted 10/12/2019  10:58 pm  Show Profile   Bookmark this reply Add CoinHI to your friends list Get a Link to this Reply
Cool, There is a thread trying to document these marks here

on Hemispherical Depressions
[url]http://goccf.com/t/237597&whichpage=9/url]

"Pride is yoked with callous behavior, as humility is with compassion." St. Gregory Palamas

Top Finds - 1969-S 1c FS-101 http://goccf.com/t/477681 1976 D WQ FS-101 http://goccf.com/t/382777 - 1968 D 1c FS-801 http://goccf.com/t/422254
Cool clashed dies - 1972 D 1c http://goccf.com/t/429855&SearchTerms=CCL
Struck-In Rim Burr - 1969 S 1c http://goccf.com/t/425587&SearchTerms=burr
Floating (Type II) Counterclash - 1978 D 1c http://goccf.com/t/434991&SearchTerms=1978


Edited by CoinHI
10/12/2019 11:02 pm
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Errers and Varietys's Avatar
United States
75443 Posts
 Posted 10/12/2019  11:12 pm  Show Profile   Bookmark this reply Add Errers and Varietys to your friends list Get a Link to this Reply
Probably Struck Through water or oil.
Errers and Varietys.
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Greasy Fingers's Avatar
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7120 Posts
 Posted 10/12/2019  11:19 pm  Show Profile   Bookmark this reply Add Greasy Fingers to your friends list Get a Link to this Reply
One to ponder on....

Edited: Is the Rockwell test being used on zinc Lincolns ?
Edited by Greasy Fingers
10/12/2019 11:20 pm
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CoinHunter27's Avatar
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5887 Posts
 Posted 10/12/2019  11:29 pm  Show Profile   Bookmark this reply Add CoinHunter27 to your friends list Get a Link to this Reply
To be honest Greasy Fingers, I don't know.

-CH27
Collector of U.S. Coins, Varieties, and Colonial Coinage
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coop's Avatar
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62064 Posts
 Posted 10/13/2019  7:59 pm  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
Looks like damage. Note how a wave is forming on the outer edge of the cavity? That shows it happened after the strike. Kind of like a meteor crater.
2019-D-LSC--Perfect-Spherical-Depression

Edited by coop
10/13/2019 8:09 pm
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Spence's Avatar
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 Posted 10/13/2019  8:20 pm  Show Profile   Bookmark this reply Add Spence to your friends list Get a Link to this Reply
@ch27, while it may be rounded, this shape is definitely not spherical. Also, I agree that the metal looks slightly "smushed" up from about 9 to 1 o'clock around this depression.


2019-D-LSC--Perfect-Spherical-Depression
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Willburton's Avatar
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 Posted 10/13/2019  8:38 pm  Show Profile   Bookmark this reply Add Willburton to your friends list Get a Link to this Reply
You're on it coop!
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CoinHunter27's Avatar
United States
5887 Posts
 Posted 10/13/2019  9:20 pm  Show Profile   Bookmark this reply Add CoinHunter27 to your friends list Get a Link to this Reply
Thanks all! Not my best coin day today is it?

-CH27
Collector of U.S. Coins, Varieties, and Colonial Coinage
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United States
751 Posts
 Posted 10/13/2019  11:33 pm  Show Profile   Bookmark this reply Add Panther to your friends list Get a Link to this Reply
Not only is there crater edging, the indentation is at an angle. The Rockwell test I would imagine should be a direct straight on hit.

Dan
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coop's Avatar
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62064 Posts
 Posted 10/14/2019  07:15 am  Show Profile   Bookmark this reply Add coop to your friends list Get a Link to this Reply
The meteor crater is 3/4 mile wide. The meteor broke up on Impact and pieces expelled out a distance away.
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