From Pipes, Artisans and Trademarks, by José Manuel Lopes

Zengoro Hattori was a highly respected 20th century maker of kirerus pipes. He trained various artisans, including Hasegawa, in his workshop in Tsubame.

Editors note: Kiseru pipes are traditional Japanese pipes used for smoking tobacco, which have been used from the second half of the sixteenth century. They are characterized by a small bowl where the tobacco is placed. The forms are generally fine and elegant. Most of the kiseru are made of metal and bamboo, but there are also models made entirely of metal or ceramics. While some models are simple and inexpensive, others are finely worked and sculpted works of art.