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 Replies: 19 / Views: 2,464 |
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Rest in Peace
United States
9104 Posts |
Grease is one possibility, especially since some areas are extra sharp, as if the metal filled them because it couldn't go where the grease was.
There's a lot of weak areas on both sides, could it be a thin (lighter weight) planchet?
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Pillar of the Community
United States
601 Posts |
Definitely a weak strike- could possibly have been caused by a slightly thin planchet. What's the weight of the coin?
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Pillar of the Community
 United States
3592 Posts |
Weight is 2.5 grams..thickness and diameter are correct too.I'm with coppercoins on this one..weak strike and maybe a little grease in some areas
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Pillar of the Community
United States
2739 Posts |
This coin was Struck Through Grease. The gunk tends to accumulate in the deepest recesses of the die face as well as at the periphery. The full rim and uneven pattern of weakness is consistent with this diagnosis. Grease also leaves a flatter appearance to the hair, cheek, base of bust, and other high relief areas, at least in copper-plated zinc cents. Error coin writer and researcher.
Edited by mikediamond
02/17/2011 12:26 pm
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Pillar of the Community
United States
7629 Posts |
You know...I agree 100% with Mike on this one (not that I would need to say so - he's an expert in his own right)...but I thought I'd mention that I was wrong in my first assessment and should have seen it right away. The main difference between a weak strike and a Grease Filled Die strike is that with a weak strike only the deepest recesses of the die would be affected, and with grease it's a random thing - any part of the design can be affected. In this particular case the ear is completely filled in (which is one of the deepest areas of a Lincoln Cent) as well as the urns and steps on the memorial - again some of the deepest recesses. With a weak strike it would make no sense that these areas would be completely struck-up and the last A of AMERICA would be very weak. Answer - obviously grease. |
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Pillar of the Community
United States
4000 Posts |
My initial impression was also a weak strike, but now that some of the diagnostics of the deeper recesses being pointed out - I see it. Interesting Greaser. Maineman, why did you say this: Quote: Almost suspected PMD, but the die crack running through the are on reverse rules that out. Not sure how the two are related. |
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Pillar of the Community
United States
7629 Posts |
I just skipped that...they aren't related to one another in any way.
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Pillar of the Community
United States
3592 Posts |
Scooby, I said that because at first it looked flattened or dremeled...the die crack is raised and over the are...that's why I said what I said...kind of hard to flatten a letter and work around the crack.Can somebody point out how that is not relative to my ruling out PMD ? And thanks to the rest of you...good to see a little difference of opinion come to a consensus...and I love learning from the best...I can't get enough of that. |
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Pillar of the Community
United States
4000 Posts |
My bad. I was just trying to understand the thought process.
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Pillar of the Community
United States
3592 Posts |
Not your bad at all...I'm asking ...was I right in that deduction ?
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Pillar of the Community
United States
7629 Posts |
Umm, I guess that's my cue since I'm the one with a foot in his mouth. Actually if you pounded on a coin with something to flatten it something as small and insignificant as a die crack would be one of the last features to go...because it doesn't stand out much. That and the only die crack I can see runs from the building through the are of AMERICA and that's one of the least affected areas on the coin...so to say it wasn't PMD because the die crack is still there is - well, kinda irrelevant. |
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Pillar of the Community
United States
3592 Posts |
Chuck, thanks for clearing that up...my thinking was that the entire reverse was flattened, but I see what you are saying in that half of that are may not have been flattened..the crack is definitely raised though.Thanks for another lesson
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Pillar of the Community
United States
3592 Posts |
I don't mean to beat a dead horse, but does anybody know why the scratches or polish marks are so prominent in the most affected areas (under memorial,on and behind Abe's head)? I wouldn't think they would appear so strong when struck through.
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Pillar of the Community
United States
2739 Posts |
These streaks are a carry-over from the original streakiness of the unstruck planchet. The "grease" is smooth and viscous and imparts no texture of its own. Instead it preserves the original texture of the unstruck planchet.
Error coin writer and researcher.
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Pillar of the Community
United States
3592 Posts |
That is good stuff....thanks for taking the time.
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Replies: 19 / Views: 2,464 |
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Posted 02/17/2011 04:33 am
