Hemmi-Sun Mannheim Slide Rule
date: label: date made
content: ca 1940
name: label: maker
content: SUN HEMMI JAPAN CF
notes: label: Description
content: This small (4-inch) one-sided rule is bamboo with a metal backing, entirely covered with white celluloid. A magnifying glass indicator has a metal frame. There are A and D scales on the base. The slide has B and C scales on one side and S, L, and T scales on the other side. The lower edge of the base has a scale of centimeters divided to millimeters. The upper edge of the base has a scale of inches divided to thirty-seconds of an inch.
label: Description
content: The D scale is marked at each end: Quot (/) +1; Prod (/) -1. The back of the slide rule is marked: "SUN" (between two drawings of the sun); HEMMI; MADE IN JAPAN. A brown leather case is stamped in gold on the flap: BAMBOO (/) SLIDE RULE (/) "SUN" (between two drawings of the sun) (/) HEMMI. Written in pen inside the flap is: BOB YINGLING.
label: Description
content: According to the donor, a colleague used this slide rule in a training program at the American Brass Company Division of Anaconda Mining Company in Waterbury, Conn., in the 1940s. He used it for such problems as calculating the weight of samples from their volume and density.
label: Location
content: Currently not on view
place: label: place made
content: Japan: Japan
topic: label: Subject
content: Mathematics
label: Subject
content: Rule, Calculating
label: Subject
content: General Calculation
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 William E. Gilbert
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1995.0087.01
label: accession number
content: 1995.0087
label: catalog number
content: 1995.0087.01
objectType: label: Object Name
content: calculating rule
label: Object Name
content: slide rule
physicalDescription: label: Physical Description
content: celluloid (laminate material)
label: Physical Description
content: bamboo (overall material)
label: Physical Description
content: leather (case material)
label: Measurements
content: overall: 1.6 cm x 13.1 cm x 3.4 cm; 5/8 in x 5 3/16 in x 1 5/16 in