The picture below shows larger front and back views of this 1930s Cracker Jack Pop Corn Confection Embossed Tin Metal Toy Prize Mouth Flute Whistle. This whistle is not dated but it is believed to be from the 1930s. The Cracker Jack ID number for this whistle is #A-0034, but the manufacturer is unknown. The mouth flute whistle measures about 1-11/16'' x 15/16'' x 1/4''. It appears to be in excellent condition as pictured.