Four Japanese single-pronged vajras, tokkosho, Edo/Meiji period 19th century,prising: a pair of bronze vajra with triangular blades, each bulbous shaft with twin bands of waisted lotus petals, 19.5cm long; a faceted iron vajra with ribbed design, 18.5cm long; and an iron vajra with two pierced holes attached with a string, signed Mitsubayashi, 19.5cm long (4)Condition Report: 品相報告The pair of vajra: slight denting to both vajras, some corrosion to the metal.The ribbed vajra: corrosion and rust patches to the metal, slight denting to the extremities.Pierced vajra: corrosion and oxidation to the metal, otherwise good condition.