SOG S1 Bowie: 5th Special Forces Group KNIFE Vietnam The S1 Bowie is the flagship model of SOG SpecialtyKnives Inc, the first knife design to roll off their productio. this knife wasused in Vietnam for covert recon operations. is it’s gun-blued SK-5 steel to ashiny hue, making it a very attractive. it’s considered to be one of the most collectibleSeki Japan SOG Knives. The S1 Bowie is commonly knownby some as the "5th Special Forces knife", howeverit’s called the "SOG Bowie"... by SOG Engraved on the left front of the blade near the cross-guard is theold "squareSOG logo". under the handle engraving "Seki Japan" In front of that engraving is the "MACVSOG" Special Forces logo. the blade reads "Vietnam 5th Special Forces Group". leather handle, classic faceted tip is the signature of SOG Bowie knives made today. Blade shows no signs of use or sharpening. Specifications:BladeLength: 6.25 in. x .280 in.Overalllength: 10.75 in.BladeSteel: SK-5 Carbon SteelBladehardness: Rc. 57-58BladeFinish: Gun-blued, PolishedWeight:12.3 oz.Edge:PlainCarrySystem: Leather sheath w/Sharpening StoneHandleMaterial: Epoxied Stacked LeatherKnifeType: Fixed BladeCountryof origin: JapanOn Aug-11-21 at 16:32:23 PDT, seller added the following information:AT THE REQUEST OF SOME MEMBERS I'MADDING ADDITIONAL PICTURE OF THE BLADE AND ITS CONDITION.