In September of 2008 I posted t.p. wiseman's "remus: a roman myth".
It's now relevant again, to our current read Roma, the Novel of Ancient Rome by Steven Saylor. In another context, there was the post lemuria, lemuralia – feast of the lemures.
And here is another nice Wikimedia Commons image:
Anonymous (Rome). Circa 269-266 BC. Silver didrachm (6.44 g). Reverse: Wolf & twins, ROMANO in exergue. Crawford 20/1. (Obverse not available)