Dave, they sure appear to be period, but each item would have to be inspected individually to be certain. The powder horn looks like it was roughly finished, not sanded, and not very professionally done, it has a pleasing aged patina but this all can be done to a modern horn too. The cap boxes all look original, I don't think anyone is making reproduction cap boxes. Do the balls fit one of the molds? Do the balls fit the bore? Check each mold for markings original molds are usually marked with a two or three digit number. That is number of balls to the pound. Did that pouch come with it? It appears to be machine sewn but the sewing machine was invented in 1829,,,,I would think it is all period, but I could be wrong too....Just my .02...LK