Title
Acu-Rule slide ruleCatalog Number
102631720Type
Physical objectDescription
Printed on the slide rule is "Regardless of how you figure it, the answer is always SECURALOY".Date
1940 ca.Manufacturer
Security Engineering Co., Inc.Place Manufactured
U.S.Identifying Numbers
| Model number | 5-J | |
| Other number | P260 | Donor's ID number for rule |
Dimensions
overall: 1/4 in x 6 in x 1 3/8 inCategory
Pre-computer/slide ruleCredit
Gift of Mike KonshakLot Number
X3741.2007
