Broken. Wash edges and let dry thoroughly. Then coat both edges with epoxy glue and press together for 24 hours. The epoxy will withstand water and oven heat.
Pieces used for ash trays and ornamental purposes rough on bottom, scratch table tops. Cut a piece of felt to cover bottom and coat one side with Pliobond cement. Let dry. Then apply cement to earthenware and again to felt. Let dry until tacky and smooth felt down.