INOSHISHI
Wild boar or pig
Inoshishi or wild boar are respected, and even feared in Japan because of their courage and their tendency to charge and attack. Wild boar are also the symbols of recklessness, fertility and prosperity. Not so long ago people believed that if they kept a clump of boar hair in their wallets it would bring in money.
Text from kokorogin.com/letter/wild-boar
Tsukioka Yoshitoshi, Yamamoto Kansuke Kills the Wild Boar, 1868
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