Tōseidō (東盛堂) (publisher ca 1847 – 1850)

Links

Museum of Fine Arts, Boston - Gengyo example

Biography:

This publisher (Marks U345) is known to have produced prints designed by Gengyo, Kuniyoshi and Shigemitsu. [Kuniyoshi's name is in bold type because he is the only artist in the Lyon Collection published by this house.]