Here is some progress pics of my third knife. Almost finished.....maybe...I think..
The knife is made out of an old file, I think it was an Australian Wiltshire bastard file.
It has a euro oak handle with a brass spacer and heat blacked carbon steel guard.

The first picture that I thought to take of it with some leaf spring steel for future abuse
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Ready for heat treat.
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Post heat treat and final grinding.
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Dry fit before heat blacking the guard which is carbon steel from the same file.
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..and finally the final dry fit.
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My only concern apart from getting those joins between the brass and oak tighter is the heat treatment on the blade. Its going to be a knife for outside and taking abuse so I wanted to etch the steel to give it some small amount of rust protection and thats the only means I have at hand. However, after the etch I noticed what could be a temper line at the tip and half way down the blade which makes me think that the heat treat wasn't as successful as I first thought after heat treatment and running a file along the edge.
Anyone with more experience than I feel like chiming in and seeing what they think on my assessment?
I'm gonna hold off gluing it all together until I work out whether I have to re-harden it, in which case I'll have to work out how to make up some clay as it's verging on too thin but might still be possible without it.