A ROUNDED SQUARE IRON TSUBA formed as a kiku, with kiri leaves and tendrils in brass and silver hirazogan, signed Izumi no kami Yoshiro Koike Naomasa, 17th century, 8.5cm.; an irregularly shaped iron tsuba, the plate formed as a bean pod and leaves, Satsuma style, 19th century, 7.2cm.; and a circular iron tsuba inlaid with blue shippo in an irregular pattern, Nagasaki school, 19th century, 8.2cm. (3)

细节
A ROUNDED SQUARE IRON TSUBA formed as a kiku, with kiri leaves and tendrils in brass and silver hirazogan, signed Izumi no kami Yoshiro Koike Naomasa, 17th century, 8.5cm.; an irregularly shaped iron tsuba, the plate formed as a bean pod and leaves, Satsuma style, 19th century, 7.2cm.; and a circular iron tsuba inlaid with blue shippo in an irregular pattern, Nagasaki school, 19th century, 8.2cm. (3)

拍品专文

There were probably several generations using this name, this would seem to be one of the later ones