Back before I enlisted in the army to become an 11 bang bang I was a power lineman in the US Air Farce.One of the civilians in the shop who was retired military had a real interesting knife,it was the first randall I had ever seen in the flesh,so to speak.His father had given it to him before he left for vietnam,it was a mod 18 that his dad had modified by threading the handle and machining a brass butt cap to replace the crutch tip.His dad was a machinist for the sikorsky helicopter co. and it was a beautiful job.He had also knurled the smooth handle surface to make it grippier(I reckon thats a real word).That was one cool knife and I really liked the riveted sheath.