Preston Parr (‘43 ‘44G) was an administrator at Lehigh for 33 years and retired in 1982 as vice president of student affairs. This slide rule was used by Parr when he was a student and was donated to Special Collections by his daughter Judy.
United States Key for Mathematical Self-Instruction on the Mechanical Sliding Rule, Commonly Called the Carpenter's Rule.
Philadelphia: C. Sherman, printer, 1850.
Lehigh University Catalog Record: https://asa.lib.lehigh.edu/Record/1024530
[Slide Rule of Preston Parr]
N.Y.: Keuffel & Esser Co., 1943.
Lehigh University Archives
Gift of Judy Parr