Sorry its a bit late, 

This is my grandfathers filliting knife, he made it himself and many other tools . 

Never seen that one corka!! Seen a lot of your

pops alterations on his tools ! But have too say

the fillet knife attachment is one of the best !

Remember him telling you that the germans

were just like us in battle... but the japs were

on a another level ?? Mind you we all know how

mercyless and ruthless .. just ask the diggers who

are left that were on the Burma rail or what they

did too the Chinese also ! Which they will never

forgive ... cheers ya mate pirate