Instructions for C-Thru Pocket Slide Rule
date: label: date made
content: 1943-1963
name: label: maker
content: C-Thru Ruler Company
notes: label: Description
content: This single sheet of paper was received with 1988.0807.02. It describes how to read the scales for two inexpensive student slide rules, the pocket-sized model 27 and ten-inch model 88, made by the C-Thru Ruler Company of Hartford, Conn. The postal code indicates a date between 1943 and 1963. The back of the sheet is stamped: GEORGE A. NORTON (/) 132 SWANN ROAD (/) WASHINGTON 23, D.C.
label: Location
content: Currently not on view
place: label: place made
content: United States: Connecticut, Hartford
topic: label: Subject
content: Mathematics
label: Subject
content: Rule, Calculating
label: Subject
content: Education
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Science & Mathematics
label: See more items in
content: Slide Rules
creditLine: label: Credit Line
content: Gift of George A. Norton
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1988.0807.06
label: accession number
content: 1988.0807
label: catalog number
content: 1988.0807.06
objectType: label: Object Name
content: sheet
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: 21.5 cm x 14 cm; 8 15/32 in x 5 1/2 in