Has anyone seen one larger than this? Not my coin, but I wanted to share. http://cgi.ebay.com/MASSIVE-CUD-CEN...93?pt=Coins_US_Individual&hash=item51976481b1
I don't think it is a cud. When was the last time you saw both the obverse and reverse dies with exactly the same die break? It's cool, but I think it is a defective planchet. What gets me about listings like this is that it illustrates how some sellers want to sell without thinking. Chris
The weakness on the reverse is caused from the lack of pressure from the void in the obverse die. It's most definitely a cud. It is however not the biggest. I have seen a few where more then 50% of the design is gone.
That's certainly in the top 10! There is a pic on the cover of 'The Cud Book' with a 60% to 65% cud on a dateless Jefferson nickel - I think that takes the #1 spot.
Correct. Blakesley effect occurs directly opposite a clip when the blank is run through the upset mill and the rim directly opposite the clip is weak or missing. The coin in the OP displays weak or missing details on the reverse where a portion of the obverse die broke off and the metal could not flow into the recesses of the reverse die. These are two examples of lack of pressure raising a feature of the coin but they are entirely different animals.
Is there a name for this distorted area on the backside of a cud? I have never heard of one and the blakesley effect does represent the opposite side of the error on a cud, so what do we call this feature on this coin?
There is not a term for it as far as I know. It is simply an unstruck or weakly-struck area of the coin.
Yeah, I'm surprised the piece that broke off the die didn't jam the machinery. Speaking of, did anyone ever find a broken die cud piece in a mint sewn bag back when they used them?