Definitions for "Bag Marks"
When coins are struck they usually fall straight into bags and are transported to banks and shops for distribution. Even though the coins in the bags are Uncirculated they often pick up 'Bag marks' from knocking and rubbing each other in the bag. Usually larger coins tend to have more bag marks because they are heavier, hit each other with more force and have more area to be marked. Collectors will allow for bag marks but often examples that are bag mark free will be worth slightly more.
Marks on coins caused by handling, storage, and shipping in bags. Coins were frequently recounted for bank purposes and thrown around, creating bag marks, but the coin could still be defined as uncirculated.
Small nicks, scratch and marks resulting from coin movement when transported in bags.