Read more: http://www.ammoland.com/2014/03/online-scams-using-fraudulent-federal-firearms-licenses/#ixzz2vfr6qhmU
Be careful when buying online. Any doubt at all, get a hold of the local ATF and they can help you verify a licence. Use the ez-check site. All you need are the first 3 and last 5 numbers of the licence number. It will give all the info you need such as premises address and date of expiration.