I always wish I could do this when I have a migraine. An illustration demonstrating the surgical instruments used for trephining. By Nicolas Henri Jacob from 'Traité complet de l'anatomie de l'homme' by Marc Jean Bourgery,
SUBMISSION: “Surgical instruments” from Marc-Jean Bourgery Traité complet de l’anatomie. Volume Plate ed: I posted this a long time ago. I recommend Vintage Printable for cool old illustrations like this.