VINTAGE UNIVERSITY OF NOTRE DAME POTTERY MUG/CUP-AMERICAN DECORATORS TRENTON, NJ, Base has no glaze on it. Almost 3 1/2" height x 3 3/4" wide across the top x 3 1/8" across the base. Very good condition. Small spot on outside of base rim looks like a nick in the glaze and pottery can be seen. Go Irish!