Keymonica Harmonica
date: label: date made
content: after 1947
name: label: maker
content: Proll Toys Inc.
notes: label: Description
content: <p>This harmonica was made by Proll Toys, Inc. in Newark, New Jersey, after 1947. It is a Keymonica model. This harmonica has a white plastic body with a white plastic mouth piece, and 10 multi-colored plastic buttons. Cast on the harmonica:</p>
label: Description
content: <p>KEYMONICA<br>PROLL TOYS INC.<br>NEWARK, N.J.<br>MADE IN U.S.A.<br>PAT. NOS.<br>2416451 – 2407312<br>2373129<br>OTHER PATS.PEND.</p>
label: Description
content: <p>This harmonica features the following patents.:</p>
label: Description
content: <p>U.S. Patent No. 2373129 dated April 10, 1945, for the construction of harmonica reed plates and reeds, by Finn H. Magnus of West Caldwell, New Jersey.</p>
label: Description
content: <p>U. S. Patent #2407312, dated September 10, 1946, for harmonicas in which the reeds or reed plate, or both the reeds and reed plate are formed of a plastic composition by Finn H. Magnus assignor to International Plastic Harmonica Corporation.</p>
label: Description
content: <p>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.</p>
label: Location
content: Currently not on view
place: label: place made
content: United States: New Jersey, Newark
setName: label: See more items in
content: Culture and the Arts: Musical Instruments
label: See more items in
content: Music & Musical Instruments
label: See more items in
content: Popular Entertainment
label: See more items in
content: Harmonicas
creditLine: label: Credit Line
content: The Peter Kassan Collection
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1988.0783.478
label: catalog number
content: 1988.0783.478
label: accession number
content: 1988.0783
label: patent number
content: 2416451
label: patent number
content: 2373129
label: patent number
content: 2407312
objectType: label: Object Name
content: harmonica
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Measurements
content: overall: 1 3/4 in x 7 1/4 in x 2 3/4 in; 4.445 cm x 18.415 cm x 6.985 cm