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Keuffel & Esser 4088-3 - Notes
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- I believe that this rule probably dates from roughly 1936, This model with the improved cursor was introduced
in the 1936 catalogue.
- The 4088 family was replaced by the 4070 and 4071 series in 1939.
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Details
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Further details about this Slide Rule:
| Brand |
Keuffel & Esser |
| Model |
4088-3 Polyphase Duplex |
| Country of Manufacture |
USA |
| Date of Manufacture |
c 1936 |
| Scales Front |
DF [CF, CIF, C] D |
| Scales Back |
K, A [B, S, T, CI] D, L |
| Number of Scales |
13 |
| Slide Rule Materials |
Wood/Celluloid |
| Cursor Materials |
Metal/Glass/Plastic |
| Cursor Lines |
1 Front, 1 Back |
| Scale Length |
25 cm |
| Length |
30.7 cm |
| Width |
2.9 cm |
| Condition |
Good |
| Documentation |
None |
| Accessories |
Leather case |
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