This one is suspect too. However, the CIRCLE on the yellow Moon chip is 25mm and Dale's book does not list a 1 circle 25mm chip. The circle is exact on both sides but the Crescent has many variations. The WIDTH and CENTERING are not as obvious as the SHADOW highlights. To me it is hand scribed and I always called that scrimshaw. You can see the variations from side to side better on this Picasa link--> http://picasaweb.google.com/TucsonSmitty/Moon_A?authkey=Gv1sRgCM_T_-qhjubiSg#5404375175844236258