Rare chair, maybe ancient..have any ideas??

I have searched for 15 years and cant find a single one like it. The carvings ar prob a clue. But Not sure what the carvings are or represent. wood is thicker than usual on this armchair and it is stuffed with straw and horse hair. wide, tall and sturdy. it is hand made the wood is all cut with strait saw. Any ideas would be most appreciated! Thanks