Thornton P271 Log Log

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Country of manufacture: England,            Date of manufacture: ____
Overall length: 36.0 cm,          Width: 5.1 cm,           Weight: 110.6 gms
Materials: all plastic, plastic end braces glued onto back and front of rule
Cursor: 3.8 X 5.7 X 0.9 cms; all plastic; lines = single line, front only
Scales: 13, no extensions
Front: LL₂, LL₃, L, A [ B, CI, ISd, Td, C ] D, S, ST, T
Back: Blank
Gauge Marks: [ π, 1745, S (2063), L (2303), m (3438), U (5730) ]
Condition: C3 (Very Minimal signs of use)
Came with: Original two piece dark plastic case, manual

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