The first by Masayuki, the third by Toyomasa Edo period (1615-1868), 19th century The first carved as a seated mask carver working on a Hyottoko mask, his facial expression identical to that on the mask, signed Masayuki and with the artist's kao; the second carved as a man seated smoking a pipe, his lips pursed and his cheeks hollow as he exhales; the third, a mask netsuke of Hannya, signed on the chin Toyomasa; the fourth a mask netsuke of a fierce demon, the reverse with a kao 1 3/4in (4.4cm) high, the largest