Wooden Calligraphy Oblique Nib Pen Holder with White Horn, Gold Lining, Extra Comfortable Grip, Removable Multi-fit Brass Flange Dip Pen No Box No Nib by Penmen United (Wood and White Horn) :
Oblique dip pen holder - Made of wood and made in France.
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Carving an Oblique Holder - YouTube
Oblique Holder with Adjustable Screw and Ink Clip – Not Just A Card