SEGA Home Video Game Console This is a set of the instruction manual and warranty card with a serial number for the Sega Mark III console. * Warranty issued: 1986 (Showa 61) * The warranty card has the store's seal (covered in the photo). * The console and accessories are not included. * Both the instruction manual and warranty card are in very good condition for their age and have been well-preserved. This item is a valuable collector's item due to the warranty seal, which serves as proof of purchase at the time. Recommended for fans of Showa-era retro games, Sega enthusiasts, and collectors.