Farley died as the result of exposure to anthrax contracted from his shaving brush. Badger and boar brushes are the most commonly found animals used for shaving brush fibers. All forms may be applied with a shaving brush. The leaves are erect around the stem, standing like the hairs on a shaving brush. A hard shaving soap is used with a shaving brush to create lather for shaving. The modern shaving brush may be traced to France during the 1750s. A shaving brush can also help to lift the hair and spread the lubrication.