There are multiple versions of this one in the fake reports, with identical features all the way down to the "scratch" on the apex (only visible through enlarging - you should come in much tighter with your pics) - the rightmost of the priestly instruments (your reverse pic is upside-down). All are struck or pressed fakes from the same dies.
As echizento says, there are some good resources on this site, including the "Books, downloads, websites" section. Caveat Emptor definitely applies when shopping for ancients. Knowledge is power.