Goyard St Louis Question

So if it has a leather-covered button, it's not necessarily a fake??

I just picked up a large St. Louis tote at a consignment store for an unbelievable price. It's definitely several years old. What other signs of authenticity should I look for?
 
So if it has a leather-covered button, it's not necessarily a fake??

I just picked up a large St. Louis tote at a consignment store for an unbelievable price. It's definitely several years old. What other signs of authenticity should I look for?


If you don't mind me asking - what were you able to buy it for??

And I hope people answer re; authenticating in case I get luck and come across something like that.