This is a signed Japanese ivory Okimono of a Fukurokuju. It dates from the Meiji period. The Fukurokuju is in company of a boy who bears a gourd on his back.
A Fukorokuju is one of the seven lucky gods in Japanese mythology. Usually portrayed as bald with long whiskers. Actually it is being thought that this god is an
assimilation of a Chinese god,the three start god.
In summary the sizes of this Netsuke are:
3.18 cm wide
3.81 cm high
30 grams in weight