Vintage Sterling Silver Bar and Ball Necklace

This necklace is handmade and I believe it is Native American but I am not sure.  It is unmarked and tests as sterling silver and measures 25 inches in length.  The beads are 6mm and the bars measure 1 1/2 inches including the loops on each end.  The weight of the necklace is 21.5 grams and it is in great vintage condition.  I did no polishing at all on it.