Does anybody know about an old case xx like this... My granddad gave it to me about. Twenty years ago... But other than that I can't seem to find any info... No tang markings only case x x x on blade near spine... I can't figure out how to post a pic... But it's about a eight inch fixed blade camp style knife... Woodhandle with three brass ppeened pins.. Blade has large angular grooves Almost like a file... With a slight drop point...case xx Stamped on left side of blade near top halfway down...