The Magnus Harmonica Corporation (originally the International Plastic Harmonica Corporation) was founded in 1944 in New Jersey by Danish immigrant Finn Magnus (1905–1976).[1] First supplying American troops in World War II, and later marketed to children and other beginners, the company's harmonicas (as well as its accordions, bagpipes, and mechanical reed organs) used a then-unique molded-plastic reed comb. The styrene-based plastic construction resulted in lower cost, greater durability, and a distinct sound compared to other free reed aerophones with metal reeds.[2][3][4][5][6]
In 1958, Magnus joined with television salesman Eugene Tracey, and their company went on to sell millions of inexpensive electric chord organs and song books[7][8] until the late 1970s under the name Magnus Organ Corporation. Early Magnus Chord Organs were either laptop or tabletop models, with some of the later models having integrated legs and a lighted music stand.[9] At its peak, Magnus employed over 1,800 workers in Linden, New Jersey, including a "mother's shift" during school hours and a "work release" program for non-violent inmates of the nearby Rahway State Prison.[citation needed]
After Magnus and Tracey retired, the publishers of World Book Encyclopedia ultimately acquired the Magnus sheet music catalog and ceased production of Magnus instruments.[citation needed]
Magnus harmonica models
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Magnus organ models
300: Tabletop Model, Two Octave, Six Major chord, Brown or Cream Plastic Case - c. 1960s
302: Tabletop Model, Two Octave, Six Major chord, Brown Plastic Case with faux wood
303: Free-Standing Model, Three Octave, Six Major chord, Six Minor chord, Brown Plastic Case - c. 1970s
306: Free-Standing Model, Three Octave, Six Major chord, Six Minor chord, Brown Plastic Case
350: Tabletop Model, Two Octave, Six Major chord, Brown Plastic Case
360: Tabletop Model, Two Octave, Six Major chord, Cream Plastic Case - c. 1970s
380: Tabletop Model, Two Octave, Six Major chord, Cream Plastic Case with faux wood - c. 1960s
391: Tabletop Model, Three Octave, Six Major chord, Six Minor chord, Brown Plastic Case - c. 1970s
400: Tabletop Model, Three Octave, Six Major chord, Six Minor chord, Brown Plastic Case - c. 1970s
468: Tabletop Model, Three Octave, Six Major chord, Six Minor chord, Cream Plastic Case - c. 1970s
481: Tabletop Model, Three Octave, Six Major chord, Six Minor chord, Brown Plastic Case - c. 1970s
500: Tabletop Model, Three Octave, Six Major chord, Six Minor chord, Real Wood Case
535: Free-Standing Model, Three Octave, Six Major chord, Six Minor chord, Real Wood Case - c. 1968/69
545: Free-Standing Model, Three Octave, Six Major chord, Six Minor chord, Real Wood Case
549: Free-Standing Model, Three Octave, Six Major chord, Six Minor chord, Six Bass Notes - c. 1960s
655: Tabletop Model, Three Octave, Six Major chord, Six Minor chord, Faux Wood Case
657: Tabletop Model, Three Octave, Six Major chord, Six Minor chord, Brown Plastic Case with faux wood - c. 1970s
660: Free-Standing Model, Three Octave, Six Major chord, Six Minor chord, Six Seventh chord, Brown Plastic Case
665: Tabletop Model, Three Octave, Six Major chord, Six Minor chord, Brown Plastic Case with faux wood - c. 1970s
668: Tabletop Model, Three Octave, Six Major chord, Six Minor chord, Brown Plastic Case
670: Free-Standing Model, Three Octave, Six Major chord, Six Minor chord, Brown Plastic Case - c. 1970s
700: Tabletop Model, Three Octave, Eight Major chord, Eight Minor chord, Faux Wood Case
890: Free-Standing Model, Three Octave, Eight Major chord, Eight Minor chord, Eight Bass Notes, Wood Case - c. 1960s
1510: Laptop Model, Two Octave, No Chord buttons, Brown Bakelite Case - c. 1950s
8100: Tabletop Model, Three Octave, Six Major chord, Six Minor chord, Brown Plastic Case - c. 1960s
Disney Edition: Same as Model 360 but has Orange Plastic Case - c. late 1970s
^"Social Security Death Master File". Retrieved April 21, 2017. Social Security number ... was issued to FINN MAGNUS, who was born 14 August 1905 and, Death Master File says, died August 1976.