These were issued in sets along with the three cent J615-J617/P680-P683 and 5 cent J623-J629/P692-P699 or J633-J634/P704-P706.
These were struck in the following combinations:
Nickel J605/P670 which is relatively common.
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.