[ 1920s Japan - Osaka Central Public Hall ] Osaka Central Public Hall (Osakashi Chuo Kokaido) on Nakanoshima, Osaka. It was designed by Shinichiro Okada (1883-1932) and opened in 1918 (Taisho 7). The construction was made possible by the financial contribution of 1 million yen by speculator and businessman Einosuke Iwamoto (11877-1916). 20th century vintage postcard.