the cartoon harmonica is made of plastic and metal, which is lightweight, exquisite workmanship, sturdy and durable, easy to clean, a great gift for your children and friends Instrument toy ...
U. S. Patent #2416451, date February 25, 1947, for a method of and making integral reed plates and reeds by Finn H. Magnus assignor to International Plastic Harmonica Corporation.
U. S. Patent #2416451, date February 25, 1947, for a method of and making integral reed plates and reeds by Finn H. Magnus assignor to International Plastic Harmonica Corporation. overall: 7/8 in x 4 ...