Year 17 of Trajan's reign in Egypt — 113/114 AD — fell during the buildup to his Parthian campaign, which launched the following year and briefly extended Roman control to the Persian Gulf. Alexandria's imperial mint continued producing dated bronzes by regnal year rather than consular dating, a administrative holdover from Ptolemaic and early Roman provincial practice that makes Egyptian bronzes among the most precisely datable coins of the entire Roman world.
Year 17 of Trajan's reign in Egypt — 113/114 AD — fell during the buildup to his Parthian campaign, which launched the following year and briefly extended Roman control to the Persian Gulf. Alexandria's imperial mint continued producing dated bronzes by regnal year rather than consular dating, a administrative holdover from Ptolemaic and early Roman provincial practice that makes Egyptian bronzes among the most precisely datable coins of the entire Roman world.