This is a superb slide rule in its mahogany case with small brass closing hooks - circa 1900 - made by the very well-known Parisian manufacturer Tavernier Gravet.
This instrument was used at the time by scientists and engineers to make calculations.
The dimensions of the case are: Length of 53.5cm, width of 8cm and height of 3cm.
This is a superb slide rule in its mahogany case with small brass closing hooks - circa 1900 - made by the very well-known Parisian manufacturer Tavernier Gravet.
This instrument was used at the time by scientists and engineers to make calculations.
The dimensions of the case are: Length of 53.5cm, width of 8cm and height of 3cm.
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