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"
5026 Martes 0.24 and an inclination of 4° with respect to the ecliptic. A first precovery was taken at Palomar Observatory in 1953, extending the body's observation arc by 34 years prior to its official discovery observation at Klet. "Martes" has been characterized as a carbonaceous C-type asteroid by PanSTARRS photometric survey. "Martes" forms an asteroid pair with , and was part of the 35 sample asteroid pairs in Petr Pravec's study "Formation of asteroid pairs by rotational fission", published in the journal "Nature". Between 2008 and 2010, several rotational lightcurves of "Martes" were obtained from photometric observations. Lightcurve analysis gave a