Mechanical Pencil
name: label: Associated Name
content: Listo Pencil Co.
notes: label: Description
content: Charles Wehn (1880-1958), a pencil salesman in California, saw an imitation tortoise-shell comb made of Pyralin, in 1919, and thought of making pens and pencils out of this new and relatively inexpensive material made by Du Pont. By 1921 Wehn had opened the Listo Pencil Company (from the Spanish word for “ready”) in Alameda, California. This mechanical pencil has a “LISTO PATENT” inscription.
label: Description
content: Ref: Charles E. Wehn, “Method of Shaping Pyroxylin,” U.S. Patent 1,461,299 (July 10, 1923), assigned to the Listo Pencil Corporation.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Chemistry
creditLine: label: Credit Line
content: Gift of Celanese Plastics Company
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: CH.334331.141
label: accession number
content: 310799
label: catalog number
content: 334331.141
objectType: label: Object Name
content: Mechanical Pencil
physicalDescription: label: Measurements
content: overall: 140 mm x 8 mm; 5 1/2 in x 5/16 in
label: Measurements
content: overall: 5 1/2 in x 1/4 in; 13.97 cm x .635 cm