Odd Looking Khusro II Sasanian

Hi everyone,

In my E-Bay surfing I came across this:

http://www.ebay.com/itm/38139651383...RK:MEBIDX:IT

I hope I'm not breaking protocol by pasting a link but I couldn't figure out how to copy just the image with enough resolution so you could see it properly. This coin looks odd to me for a couple of reasons:

1. If you look at 11 o'clock there are a number of very sharply defined ridges which are supposed to represent the dotted border. These look odd like they were done with a graver or even some sort of CNC process where you can see the steps. I wouldn't expect ridges this sharp on a coin this old.
2. If you look just above his forehead into the first layer of crown you can see three parallel lines - if I only saw one I would think the coin had been struck twice and the die moved slightly. If these lines are caused by multiple strikes then that seems inconsistent with the very sharp edges noted above in 1. Maybe they are part of the design? Or result from some sort of compression of the metal (like a wrinkle on cloth)from one strike?

I am not trying to discredit this seller and I am not bidding on this item. I am just curious as to whether these features are normal ones resulting from the production process or whether it indicates something else .

Thanks for your comments!