Acu-Math slide rule
||Donor's ID number for rule
overall: 3/8 in x 6 1/2 in x 1 3/8 in; overall: 3/4 in x 7 1/8 in x 2 in; overall: 3/8 in x 6 3/4 in x 2 in
Object consists of slide rule, leather case and box. Written on leather case in pen is "E. A. WANDS." The documentation refers to this slide rule as, "THE MANNHEIM TYPE SLIDE RULE."
Pre-computer: slide rule
Gift of Mike Konshak