My thoughts are that since both defcon 's and the Chinese version are identical down to the fake .999 Silver, I personally think he simply bought them and tried to pass them off as his own.
Maybe if defcon could produce a pic of the dies or some proof of his original design?
If you read the Item specifics...
http://www.aliexpress.com/item/100-pcs-lot-Customized-Made-Non-Magnetic-Brass-Silver-Plated-1oz-Bitcoin-Bars/32355938034.html
Regional Feature: Europe
Product Type: customer customized design,collectable Gifts
back side feature: he bitcoin logo & in cryptography we trust
Finish looking: new, shinny,silver plated,two side design
It says Customer customized
All in all.... Bad design from a bad supplier...