Nestler 27a Precision

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Country of manufacture: Germany,            Date of manufacture: ____
Overall length: 57.9 cm,          Width: 4.3 cm,           Weight: 209.5 gms
Materials: Celluloid laminate over mahogany
Cursor: 7.6 X 39 X 1.5 cms; metal framed glass lens; lines = three lines
Scales: 13 scales; conventional C, CI, D, L, K, S, and T scales are included as two 20" segments each
Top Edge: 0-56 cms, 2-segment L scale
Front: 1-cycle log scale ('C'), W1 (segment 1 of 'C') [ W1' (segment 1 of 'C'), Inverse of W1', Inverse of W2, W2 (segment 2 of 'C') ] W2' (segment 2 of 'C'), S (actually equvalent to common 'ST' scale)
Bottom Edge: 2-segment K scale
Slide Back: 2-segment 'S' scale, 2-segment 'T' scale
Gauge Marks: [π, C, C1, ρ^'', ρ_,,, unknown 1' at about 5°16.7' on S (ST) scale ]
Back: physical constants, conversion factors
Condition: C4-C5 (Minimal to Normal signs of use)
Came with: Original wooden clamshell case

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