This is listed in Judd in Appendix A on page 231. The dentilated blank side was probably struck from the same die as on gold dollar J136/P163. Billon J131B/P157 and copper J131C/P158 are noted with fewer than a half dozen of each believed to exist. This image is a composite. Photos used are courtesy of American Numismatic Rarities and Early American History Auctions.