The surface of Keicho Oban had a writing in ink of 'Ju-ryo Goto' (a kao [written seal mark]), and this seal mark was written by Tokujo GOTO, who was the fifth generation of the Goro family, Tokujo's real younger brother Chojo, Kenjo, who was the seventh generation of the Goto family, and Teijo, the ninth generation of the family.
表面は「拾両後藤（花押）」と墨書され、後藤五代徳乗、その実弟長乗、七代顕乗、九代程乗の書である。