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)