Four ivory figure netsuke

Four ivory figure netsuke
Meiji era (1868-1912), late 19th/early 20th century
The first a mischievous boy, seated, peeling off his taiko drum head with one hand, his robe stained in green and other details inlaid, signed Yasutomo, 3.5cm (1 3/8in) wide; the second of Ashinaga, seated on a small drum, holding a book with both hands, his robe stained in green and other details inlaid, signed Mitsuyuki, 4.5cm (1¾in) wide; the third of Hotei with a blind masseur, his robe stained in green and other details inlaid, signed Yasuichi, 3.5cm (1 3/8in) wide; the fourth a boy with a rabbit on his shoulder, unsigned, 5.3cm (2 1/8in) high. (4).