Product: 1970 EXPO '70 Japan World Exposition Osaka Expo Commemorative Micro Book To commemorate the opening of the 2025 Osaka-Kansai Expo, I am offering a rare micro book from the 1970 Japan World Exposition (Osaka Expo). The condition is good, and the seals are all present. This micro book was created with cutting-edge technology of the time, over half a century ago. We hope you will add it to your collection. Specifications: Micro Book Red Book Size (approx.): 3cm x 2.3cm, 64 pages Black Book Size (approx.): 6mm x 4mm, 20 pages Black Book Dedicated Loupe Case (approx.): 9.5cm x 6cm Seal Size (approx.): 23mm x 12mm Case Size (approx.): 9.6cm x 5.5cm *Also listed elsewhere, so please understand if it sells out.