We have a bakelite handle clothing brush ? horsehair bristles.  It is a vintage item.  It measures about 5 3/4" in L x about 1 1/8" across the top x about 1 3/8" in L.  It shows some light wear on the handle  (2 discolorations on the top edge which are small I tried to show them in my photo's) and the bristles show some light wear as well.

Clothing Brush Bakelite Handled Vintage Item