1930-D Lincoln error

kurtdog · October 23, 2008 6:01AM

This looks to me like an engraving error. Got these pics from the owner. Look at the marks just under the nose and tie and on the lips, which are all "recessed." Looks like the engraver did some touch-up chiseling there...probably to the hub (which is the positive impression)...then, imparted to the die, then, to the planchet. Can't confirm it...too late for that. Best I can do is just go off what this looks like. So...what does it look like to you? How do you think these marks were caused? Thank you.
Kurt

seanq · October 23, 2008 6:30AM

Gotta be honest, I can't see anything in those pictures. It's very unlikely that the dies were toughed up by an engraver. A recessed mark on the coin would most likely be from circulation wear or an impact from another coin in a bag pr pocket. If there were any engraving lines on a die they would appear as raised lines on a coin struck by it.

Sean Reynolds

kurtdog · October 23, 2008 2:16PM

Thanks, Sean. What about engraving marks on the hub? Look at these side-by-sides and think of the four marks as having been made to the "positive," the hub. I just can't see these types of marks as having been made by chance, and certainly not by any coin.
Kurt

GrumpyEd · October 23, 2008 2:51PM

Maybe it's reduction lathe doubling.

I've seen something like it on a lot of cents, mostly from the 30s.

You might check this thread on coppercoins:
(it's about later dates but I've seen it on ones from the 30s)

thread on coppercoins

kurtdog · October 23, 2008 3:44PM

I read the thread and I'll have to sleep on it and look into this further when I get a chance tomorrow. But I understand a little bit about the reduction step, and I can see how the images referenced in the thread could result. I appreciate this, Ed. I don't know about those marks on the lips, though, and right now I'm still leaning towards a reworked hub.

mozeppa · October 23, 2008 7:33PM

ejection damage.

kurtdog · October 24, 2008 12:05PM

<< <i>ejection damage. >>

I just never saw that as capable of leaving that kind of damage. I think it makes more sense than my explanation, though, especially given the look of that date and mint mark, too. Thanks mozeppa and all for your help on this one.
Kurt

errormaven · October 26, 2008 1:30AM

The photos are poor, but to me it looks like machine doubling. Some forms of machine doubling push metal to the side and pile it up in low ridges.

AUandAG · October 26, 2008 1:48AM

Open a photobucket.com account and upload your images to it and then copy the bottom code under your
pic and paste directly into your forum text box.
Those pics are way too small.
and a hardy WELCOME as well!
bob

1930-D Lincoln error

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