Doubled ear or MD?

Don't take this as fact , but I'm pretty sure he means when the coin is seated in the collar it might be at an angle . Since this happens in milliseconds I'd think it would be the same as MD . Though I'm not a mind reader so Usmc60 might have meant something entirely different .

 

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if I may suggest why don't you look up the 97 double ear it would be a lot easier if you read it for yourself like I did, and no I do not know the link I'll learn how to do that someday. I found the information quite interesting if I do say so. \V/

 

Basically you hit it right on the nose. But I still suggest reading up on the cause of the 97 double ear, \V/Thank you

 

So I take it you didn't mean the blank was misaligned in the collar ?

Posting a link is easy , when you're at the page you want click on the url then right click "copy" when you come pack to where you want to put it click on the blinking cursor right click and hit paste .

 

The blank working die is tilted when the master hub is pressed on it the first time. During the second hubbing the die moves to a level position. It's called a class XI doubled die. Here is an explanation:
http://www.error-ref.com/doubled-dies/
The working die is doubled as in any other doubled die. All of the coins are the same that are minted so there is no progression. Here is Ken Potter's article about it:
http://koinpro.tripod.com/Articles/1997DblEar.htm

 

So, do you think it is doubling or not?

 

No I don't think yours is hub doubling Sheila. I got sidetracked and was having a conversation about the 1997 doubled ear. Here are links to other doubled ear Lincoln Cents.
http://www.coppercoins.com/lincoln/diestate.php?date=1997&die_id=1997p1do001&die_state=mds

http://www.coppercoins.com/lincoln/diestate.php?date=1993&die_id=1993d1do001&die_state=mds
http://www.doubleddie.com/307743.html

http://www.doubleddie.com/307743.html

and the king of them all:

http://coppercoins.com/lincoln/diestate.php?date=1984&die_id=1984p1do001&die_state=eds

 

ok, I thought you were saying hub doubling, but I got confused with the conversation. That's the info I had looked up too. Thanks for clearing that up for me.

 

Some great links , man some of this doubling is hard to understand . Like why would they use 2 different hubs to make a working die .

 

I do not understand that either. This stuff can be very confusing.

 

They were pressing 2 pieces of steel together. The master hub, and the working die. They could not get the impression deep enough with one squeeze. They had to take the die out and anneal it (heat it to a high temperature) to soften it. It was then returned to the hubbing press for the final squeeze. The second time around sometimes the die did not align perfectly and some features were doubled, thickened, or twisted.
Nowadays they have stronger presses and only need a single squeeze.

 

I got that as I'm a retired Tool and Die maker and even worked in heat treatment for a few hot months when it got real slow , but I thought they said it was from using 2 different hubs . I figured they have one master hub , and if they need to make a lot of dies they might make a few more working hubs . Still I always thought they would use the same hub on each die . Thanks Tom I'm slowly getting it . lol