Any chance of photos with a better lightsource and a plain white background? Judging from the portrait alone I'd say Geta but with better photos I think the legend or at least part of it could be readable to be sure.
I collect and deal in ancient Roman coin. In case you're looking for affordable ancient coins or need any help with the coins you already have send me a message.
Can't read the obverse but the reverse if PRINCIPI IVVENTVTIS, my guess is it's either Caracalla or Geta, more likely Caracalla as I can't find PRINCIPI IVVENTVTIS examples of Geta, only PRINC IVVENTVTIS. A young portrait so most likely while he was Caesar and not Augustus. Try matching PRINCIPI IVVENTVTIS to examples here: http://www.wildwinds.com/coins/ric/caracalla/t.html
I collect and deal in ancient Roman coin. In case you're looking for affordable ancient coins or need any help with the coins you already have send me a message.