The picture below shows larger side views of this 1930s CrackerJack Pop Corn Confection Tin Metal Toy Prize Whistle. This whistle has a die cut on one side that looks like a flower. Inside it there is a foil type paper. There were other versions with different designs made as well. This one has the CrackerJack ID number A-0031. It is stamped “JAPAN” but and Manufacturing Company is unknown. To whistle measures about 1-1/2'' long. It appears to be in good used condition with wear from use as pictured.