Only a little thing - the blade is about 58mm - it was in a nasty plastic handle - I think it was a paper knife or something.
First time I've ever attempted anything like this.
Thanks Cameron.
It's a Sheffield made blade and was easy to get very sharp (tho' it remains to be seen if it will hold that edge), so I'll see if I can't find it a better role than opening the post, even if it's just living in the pocket of my fishing jacket.
That will need a sheath tho'