Abrader Item Number: Aa92 from the MOA: University of British Columbia
Irregular, somewhat conical shape; sponge-like surface has several indentations and numerous scrape marks. It has a large hole part way into the centre, with lacy bone material lining and partially covering it. Recessed sections are cream-coloured in contrast to the greyish-brown bone.
After the bow is fashioned with a knife, the bone smoothes the surface.
For smoothing bows.