Old pocket slide rule mechanical calculator

---

Size: 4816px × 2369px
Photo credit: © Opreanu Roberto Sorin / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: -fashioned, antique, bright, calculation, calculator, clean, computer, crossed, device, diagonal, engineer, engineering, equipment, heap, isolate, isolated, large, logarithmic, logarithms, mathematical, mathematics, mechanical, objects, obsolete, overlap, pair, pile, plastic, pocket, retro, rule, ruler, scale, science, shifted, shine, slide, small, tool, vintage, white, wood, wooden, worn