Watch List notes:

ARABIA, Bostra. Trajan. AD 98-117. AR Tridrachm or Tetradrachm (22.5mm, 10.57 g, 7h). Struck circa AD 111. Laureate bust right, slight drapery / Arabia standing facing, head left, holding branch and bundle of cinnamon sticks(?); camel at side to left. Metcalf, Tell Kalak 2 = SNG ANS 1153; Sydenham, Caesarea 182; BMC 59-61; RPC III 4051. VF, find patina, light scratches and deposits.

Ex Gorny & Mosch 233 (6 October 2015), lot 2142.

Traditionally thought to be tridrachms, but more recently termed tetradrachms (see K. Butcher, "The silver coinage of Roman Arabia," Judaea and Rome in Coins 65 BCE-135 CE [London, 2012], p. 208).