Class A / Standard Grade
These pins are as good as they normally get, with only one or two barely noticeable to near-invisible imperfections. Most pins produced with each batch fall under this grade.
Class B / Second Grade
These have more easily noticeable flaws. They're not the best for close-up photos, but still great for accessorizing your bags or clothes.
Class C / Salvage Grade
These pins have highly noticeable defects, and are not currently sold on the store but may be considered for giveaways depending on the degree of damage.