The photo is of a Consolidated Palace Size Plate in the Spanish Knobs pattern - Green wash. This pattern from 1929 is closely related to the Catalonian Line.
Colors/treaments:
Brilliant--Emerald Green, Spanish Rose, Crystal
Soft--Honey, Amethyst, Jade
*Note: "Brilliant" means color is in the glass, no highlighting. "Soft" means a color wash was applied to clear glass.
Measurements: 15" diameter
This plate does not appear in Jack Wilson's book (1989), Phoenix & Consolidated Art Glass 1926-1980; the identification was verified with Mr. Wilson.