Brush seater & commutator cleaner
This object consists of a box that originally held four sticks of abrasive material; now there is a complete stick and half of one that was broken off. The box identifies the grade as "Medium."
U. S. A.
||Stamped on top of the box.
||Printed on top of the box.
box: 5 in x 1 1/4 in x 7/8 in; complete unit: 4 3/4 in x 1/2 in x 3/8 in