toned image of vintage wooden abacus on blackboard

---

Size: 4824px × 7236px
Photo credit: © Yury Zap / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: abacus, accounting, algebra, blackboard, calculator, chalkboard, classic, count, educat, education, image, math, mathematics, object, rustic, school, simple, symbol, toned, tool, vintage, wooden