Well recheck your number on the coin because you cant have 1KingCK coin the first ever made
My coin have year 2014 and not 2015 as yours. Yours is from second batch of coins they made. Not sure in how big numbers.
I am pretty sure mine was first one sent out of China from first 2014 series. Of course impossible to prove that unless i would keep the envelope. I got it in October 2014.
As you see from my link, they name it as an "ancient coin with single ID" , while yours have two 7 character long alphanumeric IDs and one of them is 1KingCK.
This is not my coin, but i searched for link where i first saw it.
https://www.dropbox.com/s/bstp1domvay61wv/new%20coin.mp4?dl=0You can clearly see 2014 year on it. And my coin is from this batch. And as I said Is most likely first that was ever sent from China.
Also this:
https://bitcointalk.org/index.php?topic=984034.msg10722672#msg10722672Post was made in March 2015 that was half year after I had my coin here in Europe.