I have am old military bayonet make of Soligen steel, fairly big[long] bugger too, tried last night to put some kind of edge on it, very duanting tast indeed, want to use it for a general camp knife. I tried the Gatco system, the lansky system, and just stroking patiently on a diamond sharpening steel, it's one tuff little jasper!!
Any thought of what the poor fellows in the trench' and or hedgrows in uniform used to do to sharpen one up without causeing a major carpel tunnel flair up??

Just proving that I still have WAY to much time on my hands, I am, tinkersd