well, i'm still gathering information myself on it as i didn't know what it was other than a Trajan coin until John Anthony pointed out a few weeks ago when i posted it on another thread of Trajan coinage. John Anthony mentions the coin in his featured thread from August, 2014: Ancient: Natabatea, Rabbel ll AR Sela (Drachm). i think this coin warrants having a thread done on it, so once i get more info on it i will do so