2008 weak strike cent?

It's grease. No way that's from a worn die.

 

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Please indicate on the photo provided of the press itself where grease could come from? The photos are showing me a gravity fed system. And the piston ram is a hydraulic system not grease so where is the grease coming from? The mint must have a grease Gremlin. If you can show me where the grease comes from I will be more likely to believe it is grease instead of cleaning residue. The more I look at the press it's harder for me to believe in any of the modern coins that it could be a grease problem. And if anyone of the members has a link to the 150 technical specifications I would really like to see them. It would give me a lot more knowledge of things like grease and liquids that this press requires. I guess if I had $225,000 I could go on eBay and by this press, to find out more about it.\V/

 

That line going past the 8 seems to go almost all the way from rim to rim making it a retained die break.

 

Information update. Further research indicates there is virtually no grease used in this press, and has a very small fluid supply for the ram. And the other parts that do move have synthetic bushings. They neither absorb heat or produce heat because of the moving parts and do not require any lubrication. Still doing research will get back to you.

 

Let's put aside, for a moment, the fact that anyone who knows how dies wear knows this isn't how dies wear.

If we assume it_is die wear, where are the intermediate-stage coins? Why is it only wearing in certain areas, rather than evenly? How can the Memorial strike up so clearly if it's that "worn?" Why is there no drawn-out weakness at the periphery? Why did they leave such a worn die in place and pair it with a fresh obverse?

Have a look at the definition of "confirmation bias."

 

That's cool! Thanks!

 

It's absolutely possible is not a worn die.( Just a theory.) Again if everyone is claiming Grease (where the grease ?) No grease in the press itself, so we have to look at other possibilities for die contamination.(Show me the grease)Where did it come from and how did it get on the die. You know I did my research and found out grease is not a part of the press operation itself. So that makes me believe that grease is not a part of the problem. Unless that blank that came down the chute had grease on it. that is another possibility. I would say about the same odds as hitting the megamillion tonight, anything is possible.

 

"Grease Filled Die" is a generic term used to describe the build up of dust, machine oil and bits of metals which are inherent in ANY machining process such as the manufacture of coins.

Since the coining presses operate at hundreds of strikes per second and typical die lie is counted in millions of strikes, it is not uncommon for debris (commonly referred to as grease) to get compressed into the recesses of one or both die devices and possibly filling up those recesses to produce a coin such as the OP's.

Typically, a "worn" die produces distorted devices due to the rounding of the device edges during the coining process. Often times, folks confuse this rounding and wear with die doubling. It is simply the normal wear that any piece of metal would have being smashed against another piece of metal under 76-100 tons of pressure at a rate of 100 times a minute.



A die whose life has been over extended produces grainy fields in addition to distorted devices. But rarely if ever missing devices.



Basically, if the rim of the coin is full, then any distortion or disappearance of devices is NOT due to a weak strike OR a worn die which only leaves the generic term "grease filled die". Generic in the same sense as finding an "uncirculated coin" in circulation since "grease" does not really mean actual "grease" but coining debris.

 

It's clear that you need some more time to study the minting process. Until you do, you will never understand it.

 

Since I've got on this site everybody has shoved the correct terminology used for what is going on, when you use the word grease that is specifying a lubricant. It is totally different from a contamination built up of a variety of things as mentioned in the other quote, he is totally correct except for you do not call it grease. Years ago when the process of minting coins was different, and there was Greece involved it was appropriate. Nowadays since it's not grease but a buildup of a variety of contaminants. Should we not use the correct terminology and call it what it is.? Believe me up till today I like other members believe the grease explanation was suitable. Until I did some research on the press and confirm there was no grease involved. So it has to be another form of contamination. Oh well move in onAnd as for as not understand did you read an earlier quote of mine when I explained it could be other form of contamination. Dou

 

Do you read? Read this again:

PS. I don't believe you were a marine. Great avatar, too. Apropos.

 

Now Rick, come on, that's not nice to say. It serves no purpose.

I think I got good eyesight, I see what's going on. He was taking the grease literally. We all meant adhered contaminants. He's not clairvoyant, how did he know?

 

Part of acquiring expertise in a specialty is learning trade-specific term nuances. It's an ongoing problem with those who don't know that they don't know them.

 

(Again) up till today I totally agreed with using grease as a proper term. But being old school I associated it with lubricating grease when it was a factor in processing coins. For quite a few years my focus has been else where. And guys if you think about it how many new collectors No your alternative definition Of grease. And even old members like myself that are just getting back into collecting and have not done it for many years. And I'm sure there's other members that are doing the same, they now have the time and opportunity to start collecting again. And I guess all of you are gonna start get mad at me because I will not use grease to describe these types of errors anymore. Only where it is appropriate for later date coins, I better buckle my seatbelt I think it's going to be a bumpy ride.

 

The old avatar was better, 60. You're on my ignore list now. Keep on fighting to have it your way. I wish you luck.