EditorialFragment of drill bit, flat at one end and with slit at the other end, Fragment of a drill bit, at one end a slit (like a gouge) and at the other end rectangular flat, Nova Zembla, Behouden Huys, Willem Barendsz, Jacob van Heemskerck, anonymous, c. 159...
EditorialFragment of one, at one end a slit (like a gouge) and at the other end rectangular flat, Fragment of drill bit, at one end a slit (like a gouge) and at the other end rectangular flat. The fragment has been part of a ferret drill rather than a drill cov...