Old fashioned slide rule and box

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Size: 6000px × 4000px
Location: UK
Photo credit: © NosamA / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: accurate, box, calculation, calculations, closeup, construction, contractor, design, education, engineer, engineering, equipment, financial, industry, instrument, ivory, mathematics, measure, measurement, meter, object, plastic, professional, rule, ruler, school, slide, sliderule, subtraction, technical, tool, wood, wooden, work