Mark with Japanese mark: 如泉 "Josen" | #433223

如泉 "Josen". This mark comes from a "fuchi", a sword ferrule in the shape of a cap or ring, and was made by Josen. Josen worked as a "soukenkinkou" in the Nara line of the Murakami house. Soukenkinkou is the Japanese name for metalworkers who design accessories for bladed weapons.