Very neat dispoay item, Vacuum Cleaner Service Kit No. 10, including various carbon brushes, springs, oil wicks.  From The Ohio Carbon Company, Cleveland.  Sturdy cardboard box, covered with black paper, unmarked on outside.  Label under lid mentions chart, which was not found, however, the compartments are labeled.  Condition:  minor wear to litho on outside, with minor chips, edges and corner rubs; one corner split on lid.  Minor soiling; otherwise VG.  Box measures 11 1/8" L X 5 3/4" D X 1 1/4" H.