Hi Stu,
This is not a fantasy bow, it's a pellet shot bow, used by hill tribes in Northern Thailand, Laos Montangard and Hmong. Made with a little basket on the bamboo string for putting small pellet stones and shots in, they are still in use in Thailand in some areas but this one is vintage.
Not my knowledge, a friend contacted me and informed me.
Regards,
Detlef