1. This rule is an example of a high end Aristo Log Log engineering rule.
2. The rule is marked with the Charvoz symbol. This company was importing and selling Aristo rules in the USA.

Brand	Aristo
Model	Multi-Log 0970
Country of Manufacture	Germany
Date of Manufacture	1969
Manufacturing Code	2FX16
Scales Front	LL00, K, A [B, T, ST, S, C] D, DI, LL0
Scales Back	LL01, LL02, LL03, DF [CF, CIF, L, CI, C] D, LL3, LL2, LL1
Number of Scales	24
Slide Rule Materials	Plastic
Cursor Materials	Plastic - Magnifying
Cursor Lines	2 Front, 4 Back (marks for KW & HP)
Scale Length	27.7 cm
Length	33.7 cm
Width	4.8 cm
Condition	Good
Documentation	None
Accessories	Leather Case