How much does it devalue a crock that has a crack in it?

The value of a crock with a crack can vary significantly based on factors such as the severity of the crack, the item's age, rarity, and overall condition. Generally, a crack can decrease the value by 20% to 50% or more, depending on these factors. Collectors often prefer pieces without damage, so a cracked crock is typically considered less desirable. However, some collectors may still appreciate it for its historical value or unique character.