This is a single cereal bowl by Hazel Atlas, although it is unmarked. It is white platonite milk glass with fired on red paint on the exterior. It also has a pebbled finish rather than a smooth outside. The bowl is 4 7/8" wide. It is in excellent condition with no chips, cracks, or wear to the paint. Hazel Atlas used this pebbled finish in bright colors on bowls and mugs in the 1950s.