These were issued in sets along with a three cent and 5 cent piece. To view the set, click here. These were struck in the following combinations: Nickel J605/P670 which is relatively common with 3 or 4 dozen known. Copper J606/P671 with over a half dozen known. Aluminum J607/P672. This appears to be unique with only the Woodside coin appearing to exist. Photo courtesy of Bowers and Merena.