Every pin designer grades in different ways so to avoid confusion I will specify how my pins are graded.
Standard Grade: These are the best pins in the batch, they will have no obvious flaws making them pretty much perfect pins. Perfect for collectors!
B Grade: B grade pins have either small scratches, overspill of enamel or missing small amounts of enamel. These are only noticeable on close inspection.
C Grade: These pins have obvious defects such as a large amount of enamel missing or large scratches.