Wooden box with brass fittings. The box is lines with blue velvet. Inside are two trephines, both with brass shafts and iron blades. The iron blades sit inside the brass shafts and can be moved inside. They are locked into place with thumb screws. One of the adjusting mechanisms is broken. One of the trehines has a thumb screw on the top. Aslo in the box is a bone or ivory handle with a square hole in it. There is also a double sided file or wedge. There are spaces in the box for a scalple, head saw, and another unknown instrument.