Aristo 80102 Mobil Fuel Combsution Slide Rule

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Country of manufacture: Germany,            Date of manufacture: ____
Overall length: 19.1 cm,          Width: 3.8 cm.,           Weight: 40.0 gms.
Materials: All plastic
Cursor: 4.6 X 4.5 X 0.6 cms on front, 2.0 X 4.5 X 0.6 on back; all plastic; lines = Three on front plus 'V' scale, one on back.
Scales: 20, Some specialized
Front: Exhaust Gas Loss %, t_R-t_L, H_U kcal/kg [ DM/100kg, CO₂+CO Vol.-%, Enthalpy diff Δi, Efficiency % ] DM/10⁶, Evaporation number x_br, Steam Price DM/t
Back: 0-15 cm, L, DF [ CF, CIF, CI, C ] D, A, K
Gauge Marks: [π, ρ'' (2063), ρ' (3438)]
Condition: C2-C3 (Mint w/o all extras to Very Minimal Signs of Use)
Came with: Original light brown leather pocket slipcase

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