Well, this certainly looks like a K’tonian artifact but if you notice the grooves on the bottom, that means that this was actually made on a Jiyong potters wheel as an imitation of the K’tonian style of pottery. This is a replica, albeit a 700 year old, very good replica. I do happen to know a buyer who would be willing to pay you for it.
"BB9, bring up the current scout results."
"I'm sorry, Coach. I can't do that."
"BB9! Bring up the scout results."
"These kinds of us, Coach, use serial numbers on our products."
"BB9, are you malfunctioning?"
"You need to indicate college basketball mentors you are significantly devoted to the adventure!"
The two men in black suits turned to each other. Their faces were white.
"Someone get the president on the line! Tell him that our ICBM handler thinks that its managing a high school basketball team!"