Very Rare WW1 1917 Knuckle knife S/n 02822

It must be 10 years since I last owned one of these knives and the condition is outstanding with a 9' triangulated blade with 99% original blueing still on and it is 14' overallThe knife has a knuckle D guard with Flanges (Not Pyramids) and stamped A.C.CO U.S.A. 1917 with 95% original finish still on and the knife comes with a modified leather sheath for WW11 carry S/n 02822Price includes UK delivery