This is a souvenir from the World Expo. The front features the Australian Pavilion and the Seven-Story Pagoda from the time of the expo, and the back features Taro Okamoto's "Tower of Youth," which was displayed alongside the Tower of the Sun during the Osaka Expo. I believe it's a very rare design. The diameter of the pendant top is approximately 3 cm. An antique dealer told me it was made of silver, but I don't know the details. #WorldExpo #expo'70 #Expo #Pamphlet #Poster #PaperGoods #Collection #Vintage #70s #Pavilion #Retro #ProgressAndHarmonyOfMankind #TowerOfTheSun #FromThatEra #OsakaExpo #Catalog #Architecture #MapOfTheVenue #ShowaRetro #Postcard #PinBadge #Medal #Coin #Keychain #TaroOkamoto #Australia #SevenStoryPagoda #FurukawaPavilion #Necklace #Accessory #Architecture #Accessory #TowerOfYouth #BeautifulCondition