Back of road sign

---

Size: 3423px × 5137px
Photo credit: © Ken Welsh / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: calculate, color, colour, concept, conjecture, guess, guesswork, hypothesis, idea, illogical, illogicality, illogically, inexplicable, logic, logical, logicality, logically, mysterious, mystery, puzzle, reason, reverse, riddle, road, sign, suggestive, supposition, vertical