Mark with Japanese Mark: 文久四年子初春　赤文山人 "Bunkyuu | #458135

文久四年子初春　赤文山人 "Bunkyuu yonen ne shoshun Sekibun Sanjin". This mark is from a kozuka, which is the hilt of a small, secondary knife. It was made by Sekibun, who worked as a sword engraver (soukenkinkou) in Dewa Province (present-day Yamagata Prefecture). Soukenkinkou is the Japanese name for metalworkers who design accessories for bladed weapons.