Rare, possibly only grouping of covers this large from Japan and Japanese dependency of Taiwan/Formosa that exists.  All covers addressed to the same person in the United States.  Covers have corner cards from Smith, Baker Company (plus wax seals) Formosa, the Taiwan Railway Hotel, and a USA Office. Most do not have corner cards.  Exceptional postmarks including local handstamp marks in Japanese, Tamsui and Keelung in Formosa, Kobe, Kobe and Yokohama, Victoria Hong Kong, New York City, Newport Rhode Island, North Terrytown New York, plus FORWARDED auxiliary mark from Newport.  Some covers opened roughly. A few stamps are damaged. See scans of front and back of covers. Taiwan became a dependency of Japan in 1895 when the Qing dynasty of China ceded Taiwan Province in the Treaty of Shimonoseki after Japanese victory in the First Sino-Japanese War. The short-lived Republic of Formosa resistance movement was suppressed by Japanese troops ending organized resistance to Japanese occupation and inaugurated five decades of Japanese rule.  See scans.