A GROUP OF TWELVE TSUBA, including a bronze reticulated chrysanthemum; a circular bronze example with confronting writhing dragons amidst waves; a circular openwork iron example with an insect; four circular examples cast with dragons; another openwork tsuba with cockerel and drum; a circular openwork tsuba with fans; a circular openwork example with flowers in circular roundels; two circular examples with inlaid softmetal; and a square kiku-form example