Vintage Japanese Hannya omamori carved wood amulet risque devil charm

Description

This is a Japanese small amulet hand carved hannya mask. I believe it is carved out of bamboo or some other wood. It has a small back door that slides off to reveal miniature male and female genitals. I am not certain of the age of this item. It is probably from the preplastic era. 1940 or 1950. I am not certain. The amulet has some patina so I don't think it is new. The photo with the coin shows the amulets true color.Thanks for looking. Feel free to ask questions.