Here are the little ones I have found in my late husband's collection. I don't think they are worth very much (maybe the Royal Ordnance one?) Mike did his apprenticeship at the Royal Ordnance he loved working there until they closed down which was a shame. I think I got the Mitel one when I used to administer that particular telephone system in the 90's. I will probably end up keeping them, especially the Royal Ordnance and Mitel. I will try and find out what's what, I think number 1 is for opening watches and the last 3 are sharpeners. This edge tool thing is catching, I feel that I am becoming as addicted as Mike was ha ha!