Gravestone of Ouija board inventor

This is the back of Elijah Jefferson Bond's gravestone. Bond patented the Ouija board in 1891. In 1907, Bond trademarked another oracle game called "Nirvana the Magic Swastika Talking Board," which is now exceedingly rare. According to this website, which features photos of hundreds of planchettes from vintage oracle boards, there is only one Nirvana planchette known to exist.