This is a Canonball Pinwheel pattern bowl by US Glass. Canonball Pinwheel was made in 1906, it is an early American pattern glass or EAPG pattern. It is also called Caledonia and Pinwheel. The bowl is 6 3/8" wide. It has a ruffled rim. The bowl is in very good condition, there is a small chip on a facet line on one of the pinwheels.