Loga cylindrical slide rule - HSBC History

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Thales mechanical calculator, distributed by Ebstein brothers

Thales mechanical calculator, distributed by Ebstein brothers

Title
Loga cylindrical slide rule: Scope and Content
This cylindrical slide rule was made by Loga, a Swiss company. It was used for exchange…: Date
c. 1920: HSBC Reference Number
FR 2012-0006-0009