pictures please! front, back, and edge
weight? and the easiest but not definitive, does a magnet stick to it? There are good ones out on the bay BUT...
Try putting the date and pillars into search box upper left this page.
You might find some close pictures and a whole lot of information
If you can give the auction # we ( I'm not one of the experts ) could see those photos maybe?
edit for #?
The coin is a force, that changes the course, of a body set in motion. TFD. TrueField Detective .....tm , Counterfeit detection tools and instruments.