Yuichi Nakamura Bokura no Houteishiki (Our Equation) Limited Edition Autograph Card - 5 Cards Per Type SA 3/9 SA 4/9 SA 5/9 SA 9/9 There were a total of 9 types of autographed cards sold at the time, with 5 autographed cards of each type. I have stored them with care, so there are no folds or creases. There may be some fading due to age, but there are no stains and I think they are in very good condition. Please refrain from purchasing if you are very concerned about minor imperfections, as these have been stored by a private individual.