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.
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. overall: 7/8 in x 4 ...