Thanks very much. Now I know what these are and how to refer to them. Sheesh, that's what it's here for...that's for you to determine.
Look closely at the nine in the date. There is a blob of metal in the top circle, which shouldn't be there. The error is that after a small piece broke off the die, the mint workers did not take that die out of service, and continued using it to mint coins, each of which have a similar blob because the metal flowed into the space where the broken piece used to be. Probably the edges of the hole in the die enlarged, resulting in larger and larger cuds, until someone finally woke up and pulled the die out of service. There are collectors who look for error coins, and pay premiums for them. Cuds are to common that small ones aren't generally bothered with, and get little or no premium pricing.
Wow, I think I'm actually starting to understand this. The part of the die that "broke off" was "incused" so as to make the normal impression in that part of the "9." When it broke off and then pressed against the planchet it left metal in that space on the coin, and that's the "cud." A "greased die" is different, it's just what it says, which results in "weak strike," and isn't the result of a defect in the die (thus, technically, isn't an "error"). That's a piece of it, anyway? Thanks. Well gee, you don't have to go celebrate it...
This is not a CUD, this is a die chip. CUDS involve the edge of the coin. Check out the error section on my website to see some of the common error types. I have a pic of a nice cud there go to http://www.foundinrolls.com then scroll down and click on the ERRORS button
Hi, Thanks to those who placed the nice comments on my website here on this forum. I have a lot of fun finding the coins in rolls and then putting some of the better ones up on the website. Thanks Again, Bill