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 Replies: 24 / Views: 1,387 |
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Valued Member
Canada
276 Posts |
Wow, it almost looks like a map being etched into the coin, nice find!
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Pillar of the Community
United States
2738 Posts |
The odd color surrounding some of the string impressions, and the absence of an impression in some discolored areas. leads me to suspect that, perhaps, we're looking at a set of grooves that were etched into the surface of the coin when some acid-impregnated fibers were left laying on its surface for a prolonged period. I've come across other examples over the years.
Error coin writer and researcher.
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Pillar of the Community
 United States
982 Posts |
Thanks for the analysis Mike. There are definite variations in color. Lots going on with this one I've never seen before. What I found unusual is the L and I in LIBERTY. There is some movement of metal. Also I was under the impression that acid "burns/melts" uniformly. As you can see some of the channels are very narrow and some much wider. So PMD? "We are all flawed, some MD and some PMD." NYI |
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Pillar of the Community
United States
982 Posts |
"We are all flawed, some MD and some PMD." NYI |
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Pillar of the Community
United States
2738 Posts |
NY Islander, a determination of post-strike damage would require examination under microscope.
Error coin writer and researcher.
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Moderator
 United States
97575 Posts |
Very interesting Mike - never thought something like that.. Acid on a thread..
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Moderator
United States
189462 Posts |
Nice find!  |
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Pillar of the Community
United States
2738 Posts |
I now have the 1976-D cent and am now quite confident that it was etched by one or more acid-impregnated fibers. I'll write it up for Coin World as a cautionary tale. Error coin writer and researcher.
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Moderator
United States
97575 Posts |
very cool Mike - can't wait to read the article
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Pillar of the Community
United States
3535 Posts |
Quote: I'll write it up for Coin World as a cautionary tale. Excellent Follow-up!! |
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Pillar of the Community
United States
982 Posts |
Thank you for the analysis Mike. Looking forward to the write-up.
"We are all flawed, some MD and some PMD." NYI |
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Pillar of the Community
United States
2738 Posts |
The article on the 1976-D cent etched by acid-impregnated fibers is now out in the latest online edition of Coin World (March 18). Error coin writer and researcher.
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Pillar of the Community
United States
982 Posts |
Mike Diamond very informative Coin World Weekly article, explanation and outstanding photos of corrosive effects on coins! Thank you for delving into this unusual post mint damage. "We are all flawed, some MD and some PMD." NYI |
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Pillar of the Community
United States
2742 Posts |
Nice write-up on this coin. Makes we want to find a genuine struck through string now.
"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/422254Cool clashed dies - 1972 D 1c http://goccf.com/t/429855&SearchTerms=CCLStruck-In Rim Burr - 1969 S 1c http://goccf.com/t/425587&SearchTerms=burrFloating (Type II) Counterclash - 1978 D 1c http://goccf.com/t/434991&SearchTerms=1978 |
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Pillar of the Community
United States
982 Posts |
I'm going to 2x2 this one and keep it safe in honor of the individual who went through all the trouble. Cheers.
"We are all flawed, some MD and some PMD." NYI |
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Posted 02/04/2024 12:48 pm
