instance, is embossed with a naked winged figure of Cupid driving a chariot. The helmets were of both "male" and "female" types, portraying the wearers as Greeks or Amazons. These were apparently commonly competing teams in the hippika gymnasia, which may also have involved re-enactments of other scenes from classical tradition. The female helmets can be recognised by their sculpted hairstyles and other distinctively female elements such as diadems, ribbons and jewels. They were often equipped with the full-face masks mentioned by Arrian in his account. The faces depicted were not always those of Romans, as some were clearly intended to portray easterners. The origin of these very elaborate helmets is uncertain but appears not to have been Rome. Various origins have been suggested, including a theory that they came from Rome's eastern provinces. They were produced from the early 1st century AD through to the mid-3rd century. Although they are relatively light, they appear to have been worn in battle as well as for display purposes. One such helmet was found at the site of the Battle of the Teutoburg Forest, where three Roman legions were wiped out by Germans in 9 AD. It was perhaps worn by an officer or standard-bearer who intended its imposing appearance to intimidate his enemies on the battlefield. Arrian's account makes it clear that the horses were also armoured to protect them from javelins and other weapons used during the hippika gymnasia: "[the javelins] fall harmlessly on [the horses'] sides, particularly since the sides are for the most part protected by the horses' armour." Examples of Roman scale armour for horses have been found at Dura-Europos in Syria. It is possible that cloth or linen horse armour may also have been used, which would have been in keeping with the tunics worn by the riders. Arrian also describes the horses as wearing frontlets or head armour, of which examples were found at the Roman fort of Trimontium (Newstead) in Scotland. Weapons and exercises The riders in the hippika gymnasia were armed with dummy javelins and darts that they employed in mock battles. According to Arrian, the riders would divide into two teams, one of which would be the attacking side and one the defenders. They used their shields to cover their own and their horses' backs, forming a type of mobile testudo. Two of the defenders would stand in front of their team,