Manufacturer: Wallace China
Date of grill plate: Circa 1940s
Note: Sponge brushed design found in various colors, including rust brown, turquoise green, cobalt blue, purple and maroon red.
In the 2001 book "California Pottery: From Missions to Modernism," author Bill Stern credits design for this pattern to Martha Bird.
Grill plate photos contributed by ebay seller avocado
Pitcher photo contributed by ebay seller under_a_million_minited