Circa 1936-1938: Inside Bottom Rings— By the time you reach the number 6 fiesta nesting bowl, the circumference is 31 inches. This example in the original red glaze is in excellent condition, showing barely the lightest of use along the rim and no scratches inside and no glaze irregularities. This nice early bowl shows the wonderful iridescence of the red glaze. Marked on the bottom in the mold with the impressed mark "fiesta HLC USA." Measures an impressive 9 11/16" w x 6 5/16h"