S: Like new, only used a few times
SA: Excellent conditions, no noticeable damage
ND: New with Defects
DM: Ex Demo / Display Model
A: Very good conditions, light signs of use
AB: Good conditions, some scratches or staining
B: Ok conditions, signs of regular use with scratches or staining
BC: Used conditions, signs of use and may have light damage
C: Vintage, signs of heavy use and may have damage
D: Badly damaged