Refinery Supply Company Slide Rule
Seeking information about petroleum industry 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 slide rules — analog calculating devices that became obsolete when hand-held electronic calculators gained widespread use in the early 1970s. He preserves among the largest “pocket calculator” collections in the world.
Since many of the devices he collected came from the petroleum industry, Rance emailed the American Oil & Gas Historical Society (AOGHS). Would any of AOGHS’ many website visitors have information about a refinery supply company’s slide rule?
Before computers, the slide rule, a collectible pocket calculator.
Born in England, he worked in the petroleum industry for 25 years before moving to “the main bulb-growing area of the Netherlands.” (more…)
