Here's a really old dice set from an estate.  Four of the dice are made from bone.  The other two are more of a "butterscotch" color (Bakelite - I am told).  The leather shaker cup is in really good shape for it's age, but does have wear and discoloration.  As you can see, this is from the Wepner family (Davenport, IA).  The letter describes the age of the dice set and a harmonica (which I do not have).  Really neat old set!