Why Is The MM Filled In? - Coin Community Forum

To participate in the forum you must log in or register.

Author	Replies: 2 / Views: 1,064
clados New Member United States 12 Posts	Posted 08/20/2015 11:35 pm Going through some of the coins I inherited and came across this. Why is the mm filled? Thanks! Report this Post to the Staff

profiler Valued Member United States 144 Posts	Posted 08/20/2015 11:45 pm Dies do wear out over time. The area on the die that punches the incuse (sunken) part of the inside of a D mint mark is very small and often wears down or just breaks off. When that happens and a coin in pressed, there's no pointy part of the die to prevent that area from filling in. Report this Post to the Staff
SsuperDdave Moderator United States 23522 Posts	Posted 08/21/2015 11:41 am When you consider how a die is constructed, you'll understand how the inside of a mint mark is a little "post" sticking up from the die. It isn't hard to see how such a little exposed sliver of metal could break off under the repeated stress of striking, and you can find filled mint marks in just about every issue. Report this Post to the Staff
	Replies: 2 / Views: 1,064

To participate in the forum you must log in or register.

All Forums Category: US Coins and Currency Forums Forum: US Modern Variety and Error Coins

The First Dollar, your premier source for bullion and rare coins. See our bullion list on the site and the coin inventory on ebay.

Silver Gold Bull US is the United States leading bullion dealer. We deliver gold coins, gold bars, silver coins, silver bars and precious metals to your door. Order today!

View Last 100 New Topics

View Last 100 Active Topics

Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2026 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited.
Contact Us | Advertise Here | Privacy Policy / Terms of Use

Coin Community Forum

It took 0.17 seconds to rattle this change.