1991 Weak Strike? Error?

[bella]

Found this on tonight wondering what it might be .Thinking its a weak strike? The penny is thicker than normal also ? The one in the date is about gone also the li in liberty an the motto. If so Is a weak strike considered an error?

[willbrooks]

I am gonna say struck through grease.

[willbrooks]

As far as the planchet thickness, it actually looks to me like the coin on the right is thin, rather than the left one being thick, but that is hardly conclusive. If you could provide accurate weights of the two coins in the photo, that may shed more light. The fact is that planchet stock varies in thickness, even if it is supposed to be consistent. Like anything made in a factory, (like coins), errors are made. Maybe the quality control guy had a hangover that day. Who knows. It is always possible it was struck on a wrong planchet, but that would probably require an in-hand inspection by an expert. At any rate, a thicker planchet wouldn't be responsible for a weak strike, just the opposite. So these things aren't related and I agree with Will that there was junk or grease filled in the die. Just my thoughts as I unwind on a beach with an IPA. Now back to ogling girls in bikinis.

[jallengomez]

The difference in thickness of those two is minimal. Struck through.

[coop]

As far as the planchet thickness, it actually looks to me like the coin on the right is thin, rather than the left one being thick, but that is hardly conclusive. If you could provide accurate weights of the two coins in the photo, that may shed more light. The fact is that planchet stock varies in thickness, even if it is supposed to be consistent. Like anything made in a factory, (like coins), errors are made. Maybe the quality control guy had a hangover that day. Who knows. It is always possible it was struck on a wrong planchet, but that would probably require an in-hand inspection by an expert. At any rate, a thicker planchet wouldn't be responsible for a weak strike, just the opposite. So these things aren't related and I agree with Will that there was junk or grease filled in the die. Just my thoughts as I unwind on a beach with an IPA. Now back to ogling girls in bikinis.

The cent planchets are made by an independent company. So I don't think there is much inspection of the planchets. The mints other detecting would catch obvious errors. But probably would catch thinned planchets. We do as we inspect each coin. When you see the speed of the minting process, the coins just flow through there.

http://www.history.com/shows/modern-marvels/videos/coin-production#coin-production

[CoinHELP]

I concur with struck through grease, and some planchets can be thinner or thicker than other, or usually tapered a bit.

[RWBILLER]

Struck thru grease - a dramatic one!

[liveandievarieties]

I agree with Will.

You stole one out of my own playbook!

[jcuve]

Yes, struck through grease filled dies; and the planchets are well within Mint tolerances.

[willbrooks]

The cent planchets are made by an independent company. So I don't think there is much inspection of the planchets. The mints other detecting would catch obvious errors. But probably would catch thinned planchets. We do as we inspect each coin. When you see the speed of the minting process, the coins just flow through there.

http://www.history.com/shows/modern-...oin-production

What I actually suggested was that the planchet STOCK has specs and parameters that the mint expects and I would eat my shorts if it isn't someone's job to monitor that at the place where the planchet STOCK is made. I realize I didn't make that clear.

[willbrooks]

You stole one out of my own playbook!

Man, you don't miss a thing. Will thought he could slip that one through. It's Bob Dole's fault anyway. *winky face*

Now if only I could only thank myself, I would be in business.

[liveandievarieties]

I'm sure you do plenty else for yourself!