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Off Center + Reeded US Penny?

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United States
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 Posted 08/11/2010  11:25 am Show Profile   Bookmark this topic Add usmdemc2 to your friends list Get a Link to this Message Number of Subscribers
I have an US Penny that is stuck off centered (nothing new), but upon close examination, it has a reeded edge of some sort. But the reed is not as fine as a dime, quarter, etc. It's about twice the thickness. I was thinking could this coin somehow fell in between gearing and the reed is actually a gearing mark? I've asked around, but no one knows what to make of it. HELP !
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John1's Avatar
United States
56855 Posts
 Posted 08/11/2010  11:36 am  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
Welcome to CCF.We really would need to see a photo of it to be of any help.
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biokemist6's Avatar
United States
12437 Posts
 Posted 08/11/2010  12:35 pm  Show Profile   Bookmark this reply Add biokemist6 to your friends list Get a Link to this Reply

It is impossible for an single strike off center coin to have reeding. An off center error occurs when a planchet is misfed to the dies and it is not centered when struck. The planchet is normally held between the dies with a collar(the third die). The collar defines the diameter of a coin and also imparts the reeding during striking. Off center= no collar, no collar= no reeding. As for falling into "gearing", the presses are hydraulic so there is very little in the way of gears on an operating press. However, I strongly suspect that any coin that fell into such a place would be mangled enough that it would never make it into circulation. Of course, we would need to see pictures to determine exactly what is going on with your coin.
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 Posted 08/11/2010  2:04 pm  Show Profile   Bookmark this reply Add mikediamond to your friends list Get a Link to this Reply
It's post-strike damage from a coin-counting or coin-wrappping machine. The oversized coin gets jammed in a fluted or rifled barrel.
Error coin writer and researcher.
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Indian1's Avatar
United States
3640 Posts
 Posted 08/11/2010  8:52 pm  Show Profile   Bookmark this reply Add Indian1 to your friends list Get a Link to this Reply
This made me think back about broadstruck coins.
I used to be confused about off center/Bstruck coins.
Is it true that a Bstruck has no reeding present also.
at least on the minor ones (if that makes any difference)
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biokemist6's Avatar
United States
12437 Posts
 Posted 08/12/2010  12:18 am  Show Profile   Bookmark this reply Add biokemist6 to your friends list Get a Link to this Reply
There is a very thin line between a broadstruck coin and an off center coin. Both of them involve a failure of the collar to engage and neither will have reeding. A broadstruck coin is rarer than an off center because the planchet has to land perfectly between the dies on a press that is striking 150-200 coins/minute(the new Schuler presses crank out 750 coins/minute). There is a much higher probability of the planchet not having perfect positioning so you will usually end up with an off center strike. A broadstruck coin will also have a larger than normal diameter with extensive flow lines towards the rim.

A partial collar strike occurs when the collar is not correctly positioned when the coin is struck. There will be some reeding present either parallel to the coin(railroad rim) or at an angle. The unreeded portion can extend beyond the reeded portion a slight bit. Partial collar coins are less common than off center coins but not as uncommon as broadstruck coins.
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