Butterfield Fluidless Parascleral Contacts
notes: label: Description
content: George Hiram Butterfield (1895-1973) was an optometrist in Portland, Or. who is credited with having added peripheral curves to the posterior surface of contact lenses.
label: Description
content: Ref: George H. Butterfield, “Corneal Contact Lens,” U.S. Patent 2,544,246 (June 3, 1951).
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Medicine
creditLine: label: Credit Line
content: Robert E. Fischer
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1979.0700.01
label: accession number
content: 1979.0700
label: catalog number
content: 1979.0700.01
objectType: label: Object Name
content: Contact Lenses, Set of
label: Object Name
content: contact lenses, set
label: Other Terms
content: Contact Lenses, Set of; Medicine
physicalDescription: label: Measurements
content: overall: 1 1/8 in x 6 1/4 in x 4 in; 2.8575 cm x 15.875 cm x 10.16 cm