Vintage US Custom Made RUANA " M " Stamped 9 Blade Hunting Knife & Sheath. Vintage US Custom Made RUANA "M" Stamped Hunting Knife. Knife is solid, no loose parts. Size: 13 1/2" total length, blade is 9". The item "Vintage US Custom Made RUANA M Stamped 9 Blade Hunting Knife & Sheath" is in sale since Wednesday, April 05, 2017.This item is in the category "Collectibles\Knives, Swords & Blades\Collectible Fixed Blade Knives\Vintage Fixed Blade Knives\Custom & Handmade". The seller is "older-than-dirt2008" and is located in Milford, Michigan. This item can be shipped worldwide.