A special slide rule made in Mt. Olive. How it was used is not fully
understood. Best guess is
a teaching rule. The DM scale indicates multiple place value for a position. The DS scale is a Log scale.
Other companies made this same slide rule and versions in wood have been found.
a teaching rule. The DM scale indicates multiple place value for a position. The DS scale is a Log scale.
Other companies made this same slide rule and versions in wood have been found.
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