Old antique mechanical slide-rule on a white background

---

Size: 2659px × 2659px
Photo credit: © YAY Media / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: -fashioned, accuracy, age-, algebra, ancient, angle, antique, calculating, calculus, circle, equipment, glass, instrument, logarithm, mathematic, mathematical, mathematics, mechanical, multiplication, pointer, reflection, retro, scale, science, slide-rule, subtraction, tool