Ensuba (Potato Masher) Currency

ensuba (potato masher) antique currency/bride price of the Bafia people of Cameroon. 1 masher for sale measuring 16 inches in length and 11 inches around at greatest circumference. I dont know if its authentic or a replica (though im inclined to believe its authentic). it ways about 30 pounds (I dont have a scale so I can't be exact. im selling it because it is so big and so heavy, and I dont really have a good place for it in my house, where.its just been sitting on display (im also trying to declutter a little).