Rule Advertising Marlin-Rockwell Company
date: label: date made
content: mid-20th century
name: label: distributor
content: Marlin Rockwell Corporation
notes: label: Description
content: The top edge of this steel ruler has a 15.2 cm scale, divided to millimeters. The bottom edge has a 6" scale, divided to 1/32". The ruler is marked: STAINLESS. It is also marked: MADE IN U.S.A. The back of the ruler is marked: MRC BALL AND ROLLER BEARINGS (/) MARLIN-ROCKWELL COMPANY DIVISION OF THOMPSON RAMO WOOLDRIDGE INC.
label: Description
content: The Marlin Rockwell Corporation formed after World War I through the mergers of several American makers of ball bearings, including Standard Roller Bearing Company, Gurney Ball Bearing Company, and Strom Bearing Company. The firm merged with TRW, Inc., in 1964. According to the donor, the instrument was used by her husband, the electrical engineer Robert H. Wieler (1923–1993).
label: Description
content: References: MRC Bearing Services, "MRC History," in <i>Engineering Handbook</i> (Kulpsville, Penn., 2005), 6, http://www.skf.com/binary/12-100758/514636.pdf; accession file.
label: Location
content: Currently not on view
place: label: place made
content: United States
topic: label: Subject
content: Mathematics
label: Subject
content: Rule, Measuring
label: Subject
content: Promotional Item
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: Scale Rules
creditLine: label: Credit Line
content: Gift of Norma P. Wieler
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1998.0032.07
label: catalog number
content: 1998.0032.07
label: accession number
content: 1998.0032
objectType: label: Object Name
content: scale rule
label: Object Name
content: rule
physicalDescription: label: Physical Description
content: steel (overall material)
label: Measurements
content: overall: .1 cm x 16 cm x 1.1 cm; 1/32 in x 6 5/16 in x 7/16 in