A vintage Royal Tone harmonica made by Proll Toys Inc. in Manalapan, New Jersey, USA. Constructed of molded yellow plastic with blue detailing and marked with numbered slots 1 through 10. Features embossed branding on one side and printed branding on the other. Displays wear consistent with age and handling. Dimensions are L 4 3/4" x 1" and additional condition details available upon request.