As seen from above, their interiors were quite exquisite as persons in charge boasted 'they are Tokuro (abbreviated name of special second-class car) of the electric car,' and they were comparable to JNR 80 and JNR 70 series electric cars that were then being manufactured.
当時の担当者が「電車の特ロ（特別二等車の略称）」と自負するくらいの凝った内装であり、当時新製中だった国鉄80系電車・国鉄70系電車と比べても遜色は全くなかった。