Then you should have just said "someone I share the house with" instead of introducing her as "she." That made it extremely difficult to understand what or whom you were talking about. Believe it or not, I was trying to be helpful, instead of just ignoring all this stuff.
After seeing how many fakes are out there, I now value these uncleaned ancient coins as the best value you can get. It's the only way you can be reasonably sure you are buying something genuine, whether worth much or not. I certainly won't be buying too good to be true coins for excessive prices that match their too good to be true'ness. For example, this went for 72 GBP: Problem, it is from a seller who is almost certainly selling tonnes of fakes and has been marked that way by the community. He is selling lots of dubious as heck 'antiques' and from personal experience he has ebay protection from negative feedback. Actually, I just looked up his Alexander the Great coins he is selling this week and he is selling this one again. I guess this is ANOTHER one of those buyers who didn't pay? [Or he is selling multiple of the same coin.]