Relying on the combined knowledge of the Forum to tell me what this is for. The cast letters read WOLF in case it doesn't show too well. The adjustable section has two marked angles of 30 and 45. The top part is a spring mounted plunger. Any ideas?
Thanks Bob. Well that now makes sense as this was in the workshop of an elderly relative and also in there are a couple of valve seat cutters and stones etc. As is the way, none of the bits were near each other!