〒141-0031 東京都品川区西五反田4-4-20 (Tokyo Nishi gotanda)
http://www.cs-bon.co.jp/oy/osyougatsu_ya.html
Founded in 1980, Osyogatsu-ya is a shop of Tokyo specializing in traditional decorative items for New Year.
A selection of this maker's marks :
A selection of this maker's hashiokis :