The K&E 4080-3 was part of the second batch of slide rules I acquired in 2019. It’s a more complex slide rule with scales on both sides. The fixed scales are LL0/LL00/A/D/DI/K on one side and L/LL1/DF/D/LL3/LL2 on the other side. The slider has CF/CIF/CI/C scales on one side and B/T/ST/S scales on the other side.
The slide rule is constructed from plastic with metal brackets holding the fixed parts of the slide rule together. The plastic frame parts of the reticle are broken and need to be replaced.
Serial number: 939707
Dimensions: 31.8 cm x 7.1 cm x 0.6 cm
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