It's a size M. I am looking for buyers who understand what this is. I used to collect these and gathered them from various sites, but I've decided to sell them. I appreciate those who understand the rarity. Toin Gakuen, Kyoto Seisho, Kyoto Kogyo, Kokugakuin Tochigi, Hotoku Gakuen, Higashi Fukuoka, Ryukei, Akita Kogyo, Tenri