Refinery Supply Company Slide Rule
Seeking information about a Pocket Calculator.
“I look forward to hearing anything your knowledgeable AOGHS community can tell me about my rather mysterious AC-ME Pocket Calculator.”
David Rance of Sassenheim, Netherlands, has collected a lot of slide rules — the analog calculating devices that became obsolete when hand-held electronic calculators gained widespread use in the early 1970s. Rance preserves one of the largest “pocket calculator” collections in the world.
Before computers, the slide rule, a collectible pocket calculator.
Born in England, Rance worked in the petroleum industry for 25 years before moving to “the main bulb-growing area of the Netherlands.”
Because many of the calculators he collected came from the petroleum industry, Rance contacted the American Oil & Gas Historical Society in 2016, asking whether AOGHS website visitors might have information about a specific refinery supply company’s slide rule. (more…)
