The knurled knob is eccentric to the through bolt. The bright part looks like it has a sharpened face. It looks almost like some kind of lathe tool holder - albeit quite an agricultural one.

    Gagaryn You are very close with your description👍. I will not give it away yet.

    Close but no cigar. Hmm, some kind of architrave scriber or chamfering thingamajig? Definitely something for cutting or carving.

    Cutting yes but otherwise you are cooling rapidly

    Is it anything to do with leather working?

    I always imagine watchmaker’s stuff to be a bit more… delicate?

    So, definitely for cutting with fine incriments if the thread is anything to go by. Nothing to do with weapon or ammunition making is it?

      As some members have already mentioned, It is a hand lathe for metal and it was used on particular items ???

      The only things missing are the items to be worked and the handle to turn the item.

        Elcarajillo The only things missing are the items to be worked and the handle to turn the item.

        Where did the handle actually go?