Filbert paintbrush Filbert paintbrush The Filbert paintbrush is a paintbrush used in artwork. It has a thick ferrule and hairs that are, on average, medium to long hairs in the shape of an oval. Filberts are particularly effective in blending work, usually of a figurative nature. Many artists agree that natural fibers work best for filberts because the hairs stick together better when wet. Hairs that can be used are sable, mongoose, bristle, badger and synthetic. Media most likely to have paint applied to by a filbert are oil, acrylic and decorative surfaces. This brush is used on "The Joy of Painting"
Humboldt marten Humboldt marten The Humboldt marten ("Martes americana humboldtensis or Martes caurina humboltensis") is an endangered, genetically distinct subspecies of the American marten known only from the old-growth coastal redwood forests of the U.S. states of California and Oregon. Less than 300 of them survive in both states combined, in three different populations of 100 each; one in northern California, one straddling the California-Oregon border, and one in Oregon Dunes National Recreation Area. The subspecies was in fact considered extinct until being rediscovered in the Six Rivers National Forest in 1996. They are most threatened by a lack of population expansion