After WWII, My Great Grandfather Brought home many trophies from battlefields in the Pacific. One of these trophies was a Japanese Type 96 Machine Gun. I have never seen the weapon with my own eyes, and all I know is that it has sat in an attic for 60+ years, and it has had it's firing mechanism and magazine removed. The weapon currently technically belongs to my Grandfather. Does anyone know the legality of such a weapon in Washington State? Keep in mind it is disabled, and it was brought here far before 1994. Would it be possible to use as a collection/display piece? Thanks for any info!