This is a Vintage 1960s Teisco Imperial Black Guitar Truss Rod Cover.Nice thick 3Ply Truss Rod Cover.Used on different Japan made guitars Univox Aria Teisco Kay Kent.It is a flat truss  rod cover.Bottom holes are approximately 13/16 inch apart,and top to bottom measures approximately 1 13/16 inches center hole to center hole.Normal wear,nice vintage look.Please look at the pictures,Sold As Is..All Sales Final No Returns.Buyer pays shipping,thanks