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<p>[QUOTE=&quot;springfld.arsenal, post: 217217, member: 54&quot;]Where&#039;s Steersman, he knows about this.</p><p><br /></p><p>My WAG:&nbsp; Dark area on cutting end could be case-hardening;&nbsp;&nbsp; An ax could be made of low-carbon steel if the cutting end were case-hardened to add carbon to the surface after sharpening.&nbsp; First re-sharpening would remove hardened metal from blade leaving an easily-dulled edge.&nbsp; Remember, WAG not fact.[/QUOTE]</p><p><br /></p>

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