Curious to what this coin is? Also, is there a guide that will show and tell the various denarius coins?
Trajan AR Denarius, RIC 119 Obverse: IMP TRAIANO AVG GER DAC P M TR P, laureate bust right, draped far shoulder Reverse: COS V P P SPQR OPTIMO PRINC, Aequitas seated left holding cornucopiae & scales
Since Bing provided the ID, I guess I'll provide a link to 'Wildwinds' and the RIC listings for denarii and other types by ruler etc etc... http://www.wildwinds.com/coins/greece/judaea/t.html
For clarification, here is the home page for Wildwinds. The site is divided into Roman, Greek, Byzantine, and Celtic. Roman Provincials can be found both in the Greek and Roman sections. Your coin is a Roman Imperial issue.
The fabric of the coin looks authentic, but I think the hair detail on the bust has been tooled, which happens often on jewelry pieces. There's detail there that likely never existed. Compare to three Trajan denarii in similar states of wear...
