Nestler 0291 Polymath Duplex

Country of manufacture: Germany,            Date of manufacture: ____
Overall length: 35.9 cm,          Width: 4.8 cm,           Weight: 154.5 gms
Materials: plastic stators and slide, metal end braces, adjustable, plastic bumpers front and back
Cursor: 3.6 X 5.7 X 0.8 cms; all plastic, adjustable; lines = four on front, two on back
Scales: 24, extensions on A, B, C, D
Front: LL01, LL02, LL03, A [ B, L, K, C ] D, LL3, LL2, LL1
Back: CT, T, ST, DF [ CF, CIF, CI, C ] D, P, S, CS
Gauge Marks: [π, e, ρ'', ρ']
Condition: C7 (C3-C4 but with broken place on cursor window)
Came with: Original brown leather case, instruction booklet (German)