This is a vintage baseball-related item titled "BANDAI Sports Series Baseball School Baseball Movie: The Volume of Outfielder Shigeo Nagashima." It's a set featuring a practical skills instruction manual based on video footage of Shigeo Nagashima, a player for the Yomiuri Giants. It appears to be part of a baseball school series aimed at children at the time. The package displays the "ST" mark, indicating that it meets the standards for toys and playthings sold during the Showa era. It's a very rare retro collectible item. It's in good condition, but please understand that there is some damage and soiling on the box due to its vintage nature. The dimensions are approximately: outer box, 17cm in height, 24cm in width, and 6.8cm in thickness. It will be shipped via Mercari delivery, wrapped in bubble wrap. Price reduced from 9800 yen. BANDAI BANDAI Baseball Movie Shigeo Nagashima (Outfielder) Baseball School BANDAI Sports Series Baseball School Baseball Movie: The Volume of Outfielder Shigeo Nagashima Giants Showa Retro Heisei Retro Rare Toy BANDAI Baseball Movie