A collection of 6 calligraphy brushes, with wood, horn and bone handles, China, 19th-20th century, various sizes 

A collection of 6 calligraphy brushes, with wood, horn and bone handles, China, 19th-20th century, various sizes 

Some ink traces to one handle and to one brush
One bamboo brush has one side with regular  parallel cracks on the wood
Some scratches
Wear to the surface