I do not care if the proposed addition is copper, bronze or both. At this point you are going off on your own tangent again and veering the thread towards derailment. You have not even contributed a position on the suggestion, just several tangents and an ambiguity fallacy. If coin composition and compound percentages is another matter you would like to discuss, go elsewhere and start your own thread please. Otherwise, please remain on topic. I will begin to both ignore and flag your posts if necessary.