I want to start off by giving Dushan a great big thanks for helping out with some of the more unusual Tuesday Tools we have had. He recently commented on two past articles: What is it? and This is what it is and provided some additional photos of items.
The first one isthe arbres lisses. Which he describes perfectly. They are used to turn items with a hole in the center. The item is held in place through the center hole with friction on the tapered spindle. The entire device is then turned between centers, using the pulley to rotate the object. The set he shows have a key sticking out which would be driven by a pulley with driving spokes on the turns itself.
The second item is the bow mill which should have an accompanying mill for the pendant attachment on the case. See the milling cutter in place in the bow mill above.
Thank you Dushan, for your contributions.