Object Details
distributor
Extra Measures, Inc.
maker
Safe-T Products, Inc.
Description
This flexible clear plastic ruler has an 18" scale divided to 1/16" on one edge and a 45.7 cm scale divided to millimeters on the other edge. The rule is marked: VIEW-THRU TM SAFE-T Ruler® 43062 SAFE-T PLASTIC® China. The donor noted that this instrument was useful for measuring on overhead projectors and around corners.
Safe-T Products, Inc., of La Grange, Ill., was established in 1992. In 2006, the company became a subsidiary of A. Daigger & Company and its name changed to Classroom Products Warehouse. For company history, see 2000.0160.04. This object sold for $1.50 in 2000.
References: Safe-T/Basics by Extra Measures, Inc., about 2000; accession file.
Location
Currently not on view
Credit Line
Gift of Extra Measures, Inc.
date made
2000
ID Number
2000.0160.11
accession number
2000.0160
catalog number
2000.0160.11
Object Name
rule
scale rule
Physical Description
plastic (overall material)
Measurements
overall: .1 cm x 46.4 cm x 3 cm; 1/32 in x 18 9/32 in x 1 3/16 in
place made
China
associated place
United States: Illinois, Bensenville
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Scale Rules
Data Source
National Museum of American History
Subject
Mathematics
Rule, Measuring
Education
Link to Original Record
Record ID
nmah_904399