Ok. Well, in my opinion, based on what I see here the coin is authentic (though a physical inspection is necessary to make a full and accurate evaluation).
Note the flow lines around the
portrait and other elements of the
obverse, which are normally counter-indicative of a
cast.
From what I can see of the edge, though admittedly from these pictures we cannot see much, it has the appearance of a struck coin rather than
cast, with the usual stiking cracks apparently evident. Are you able to take clearer pictures of the edge? Is there any evidence of a seam, or filing?
Although admittedly the
reverse surface looks strange, this could be due to the method of cleaning. The
obverse surface and metal look sound to me.
I don't think those look definitively like casting pearls, and I don't see any clear casting holes in the surface. Click on the picture below for a closer look - note the presence of small raised dots and dings both in the fields and around the devices. These can be caused by scratched, rusted or otherwise damaged dies, engraver error, etc.. Small raised bumps by themselves are not always proof of a
cast. They must be taken in context.
Ultimately, as has been already said, the coin needs to be thoroughly inspected in hand, and I
echo the suggestion for you to show this to a dealer in person.