What do the enamel pin grades mean?
Enamel pins are filled and buffed by hand, which leaves room for error in the manufacturing process. I’ve sorted my pins into two categories, with A grade having the fewest defects, and B grade having the more noticeable defects. Examples of defects are specs under the enamel, scratches, discoloured metal, misplaced glitter, missing enamel, etc. The back of the pin is not factored into the grading process since it is not visible. If you want the nicest pin possible, select A grade. If you don’t mind more noticeable defects and want a cheaper price, select B grade. Also please note that occasionally pins have wobbly posts on the back. These will not fall out and therefore are not considered a defect.