Title
Ortho-phase duplex slide ruleCatalog Number
102666691Type
Physical objectDescription
Object consists of the slide rule in case.Date
1948 ca.Manufacturer
Pickett & Eckel, Inc.Place Manufactured
U.S.Identifying Numbers
| Model number | 1000 | |
| Other number | S176 | Donor's ID number for rule |
| Serial number | D104838 |
Dimensions
overall: 3/4 in x 12 1/2 in x 2 1/4 in; overall: 3/8 in x 12 1/8 in x 1 3/4 inCategory
Pre-computer/slide ruleCredit
Gift of Mike KonshakLot Number
X3741.2007
