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Details and Image



TypeModel No.MakerCountryConstruction
Material
DateScale LengthArea of Use
Linear
168
AristoGermany
Plastic
1964 or after20 cmOverhead Projection in Classroom

Notes: "This working, transparent rule is designed for use on a classroom overhead projector; the rule scales are identical to the Aristo 0968 Studio slide rule. Note how label on face of rule admonishes users in six languages not to let rule overheat.

A PDF Manual is available. Please click HERE.


Image 1