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Aristo MultiLog Nr. 0970

• Type: Log Log Duplex
• Size: 13.25 Inches / 34 cm
• Material: Plastic
• Scales:
  • Front: LL00 K A [ B T ST S C ] D DI LL0
  • Back: LL01 LL02 LL03 DF [ CF CIF L CI C ] D LL3 LL2 LL1
• Date of Manufacture, 1969, 9th batch made in Hamburg (2FX9 mark on lower edge)
• HvH: 384

With leather case. The rule is longer than my scanner, so you can't see the rubber feet that pierce the rule in 4 places for desktop use. The right-hand end of the scale has little hints about what the scale does, for instance e-x on the LL03 scale, and x3 on the K scale.

The runner has additional hairlines for converting a circle's diameter to surface area and for converting between kilowatts and horsepower.

Many scales exceed the bounds of the indices as in a Rietz rule. Oddly, the C and D scales do this on the obverse but not on the reverse.

A warranty registration was found inside the case. The return address lacks a ZIP Code, so this was likely printed before 1962. The Charvoz logo is prominent on the rule and case. Co-marketing or merger?