Circa 1938-1940: With Original Sticker— This wonderful example of the vintage fiesta green casserole made for Royal Metal Manufacturing not only includes the hard to find metal holder, but an original sticker, one of which I've never seen before, "Royal Chrome Colored Ovenware Laboratory tested for oven breakage at 450 degrees for 2 hours... greater than any baking temperature." label inside! Please note a glaze flaw on the side of the casserole that is in the making from the factory. No sign of use or damage.