The Takahashi family is along with the Ueda family the oldest potter family in Shigaraki and Takahashi Rakusai III was largely responsible for the revival of unglazed Shigaraki pottery in the 20th century. Working in the third generation he was designated a "Shiga Prefectural Intangible Cultural Property" in 1964 for his countless efforts. He was succeeded in 1976 by his son Takahashi Rakusai IV who was designated by government as "Intangible Cultural Property". Since 2010 the Rakusai family is working in the fifth generation.
Signed underneath Ra ら for Rakusai. Box inscription Shigaraki-gama Mizusashi, Rakusai 信楽窯 水指 楽斎 ("Shigaraki Fresh Water Jar, Rakusai") and sealed Rakusai 楽斎.