Mint condition is an expression used to denote the quality of a pre-owned good as displaying virtually no imperfections and being in pristine condition relative to its original production state.
Originally, the phrase related to the way collectors described the condition of coins.
[1] The term mint condition may be used to describe a variety of collectible items, including action figures, dolls, toys, stamps,[1] records,[2] comic books, video games and similar items.
For instance, when describing trading cards, "perfect" condition is used to describe the condition as it is when pulled from a pack, while "mint" would be new but opened.
Similar gradations of mint condition exist for other collectibles based on their specific characteristics.