"Ido Tea Bowls: Treasured Possessions of Muromachi Daimyo," currently showing at the Nezu Museum, presents an array of 72 rare tea bowls that were once owned by renowned warlords, tea masters and Buddhist temples. Produced by country potters in kilns in Korea's South Kyungsang province, these bowls were originally for domestic use and became treasured by Japanese tea masters and Muromachi Period (1338-1573) warlords for their rustic simplicity and rarity. They came to play a pivotal role in Japanese history.