Denver Mint's Quality Control is High
Posted by JonSullivan on Aug 14th 2017
Above Image via Coin World
The Denver Mint is very concerned about catching any errors before they make it out of the Mint, as this article details. Interestingly, the Mint employs a tool for catching rotated dies, and also for checking the coin's thickness. Additionally, the article shows photos of the Mint employee visually checking coins (which is done every 15 minutes.) The odds of a cud getting out are slim.
Here is a link to the Coin World article (be sure and view the photos in the article.) http://www.coinworld.com/news/us-coins/2017/08/denver-mint-still-production-workhorse-for-circulation.html