This is a set of two rare notebooks from the Showa era, a non-sale item released by Zett Co., Ltd. (zette baseball), which sells sporting goods. The cover features Yoshiaki Yoshimura, formerly of the Yomiuri Giants. One notebook has a small stain on the back cover. The other has a crease on the back cover. Please consider purchasing if you understand that these items have been stored at home for a long time and show signs of aging. Thank you for looking.