I see nothing in your image to make me question it's authenticity. It's a very nice looking coin with an excellent portrait and obverse strike, but weak reverse strike. In looking to attribute this coin, RIC 812 I believe, I have not been able to establish an approximate value just yet, but $350 sounds a tad high to me (but if you stick around on this discussion board you will find I have a reputation for being somewhat frugal). I will keep looking and see what I can come up with for a value.
BTW

JW
BTW
JW






















