Has anyone ever seen one of these sawed off solid pours in dark cobalt blue? Shown next to a St. Charles, IL commemorative. The only mark on the solid pour is a very faint FM on the bottom, which I assume stands for Frank Miller. Thanks to those that have provided info. It appears this is an unlisted Unembossed Solid Pour from the 1972 Third Nat'l Meet in Kansas City. Please let me know if anyone else out there has one - Thanks!