Group of Four Alumicolor Triangular Architect's Scales
date: label: date made
content: ca 1985
name: label: maker
content: Alumicolor
notes: label: Description
content: These 6-3/4" aluminum triangular rules are each a different color (gold, silver, red, blue), but they all bear the same scales. The first side has an inch scale, divided to 1/16" and numbered by ones from 1 to 6, along one edge. The other edge has scales for 3/32" and 3/16" to the foot. Between these scales is a scale divided to 3/32", numbered from left to right by fours from 0 to 60 and from right to left by twos from 0 to 28. The gold and silver rules are marked: ARCHITECT ALUMICOLOR Code 121 made in El Salvador (3).
label: Description
content: One edge of the second side has scales for 1-1/2" and 3" to the foot. The other edge has scales for 3/4" and 3/8" to the foot. Between these scales is a scale divided to 3/8", numbered from right to left by twos from 0 to 12 and from left to right by ones from 0 to 6. The red rule is marked: Cod. 121 ARCHITECT. The blue rule is marked Cod. 121 made in El Salvador.
label: Description
content: One edge of the third side has scales for 1" and 1/2" to the foot. Between these scales is a scale divided to 1/2", numbered from right to left by twos from 0 to 8 and from left to right by ones from 0 to 4. The blue rule is marked: ARCHITECT ALUMICOLOR. The order of the second and third sides is also reversed on the blue rule, compared to the other three rules. All four rules are photo-anodized to make the scales a permanent part of the surface.
label: Description
content: Alumicolor refers both to a manufacturer of drafting tools, length measures, and promotional items, and to the company's proprietary process for anodizing aluminum. The firm's headquarters are in the United States, and its factory is in El Salvador. In 2012 Alumicolor offered these architect's scale rules as model number 3010 for $6.50 each. Hearlihy & Co., a Springfield, Ohio, supplier of drafting instruments and developer of technology education curriculum modules founded by the donor's parents in 1969, continues to distribute these rules.
label: Description
content: References: <i>Alumicolor: Made to Stay, Promotional Products Catalog</i>, vol. 12 ([Fort Collins, Colo.], 2012), 3, http://www.alumicolor.com/Alumicolor_promo_catalog_v12_web.pdf; "About Hearlihy," http://www.hearlihy.com/about/; accession file.
label: Location
content: Currently not on view
place: label: place made
content: El Salvador
topic: label: Subject
content: Mathematics
label: Subject
content: Drafting, Engineering
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Science & Mathematics
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content: Scale Rules
creditLine: label: Credit Line
content: Gift of Daniel A. Hearlihy
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1987.0589.05
label: accession number
content: 1987.0589
label: catalog number
content: 1987.0589.05
objectType: label: Object Name
content: rules, architect's
label: Object Name
content: scale rule
label: Object Name
content: rules, architect's
physicalDescription: label: Physical Description
content: extruded aluminum (overall material)
label: Measurements
content: overall: 1 cm x 17 cm x 2.5 cm; 13/32 in x 6 11/16 in x 31/32 in