Physical Research Laboratories Seal Stamp
date: label: date made
content: ca 1951
name: label: maker
content: Physical Research Laboratories, Inc.
notes: label: Description
content: This metal seal reads: PHYSICAL RESEARCH LABORATORIES, INC. [/] INCORPORATED [/] MAY 32, [/] 1951 [/] CALIFORNIA. A further mark reads: RT (/) POCKET SEAL (/) PAT. OCT.23,23 (/) MADE IN U.S.A. The object has a cloth case
label: Location
content: Currently not on view
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Calculating Machines
creditLine: label: Credit Line
content: Gift of SCM Corporation, SCM Business Equipment
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1979.3084.008
label: catalog number
content: 1979.3084.008
label: nonaccession number
content: 1979.3084
objectType: label: Object Name
content: Seal Stamp
physicalDescription: label: Physical Description
content: steel (overall material)
label: Measurements
content: overall: 11.5 cm x 13 cm x 4.5 cm; 4 17/32 in x 5 1/8 in x 1 25/32 in