These are ivorite replica nineteenth century design knobs measuring 9mm or 5/16″ across the face and fitting 8mm proud. These measurements exclude the peg which can be chiselled to fit. These are copied from an original antique early Victorian knob for authenticity.
Useful for replacing missing knobs or handles on the small drawers inside writing slopes, tea caddy lids, apprentice pieces and similar small furniture. Ivorite can be waxed and shellacked and is much cheaper than turning the real bone. Also available in ebonite (faux ebony). The price is per item.