As you may or may not know, this sample is a complete mystery. Thomas sent four samples that were numbered with a corresponding sheet which told their names. Korean Customs must have gotten a little curious and went through, ravaged the package, thereby misplacing this important paper inside. So one cannot know for sure what sheng puerh bing this tea came from.
Edit: It was later found out that this sample was a 2007 Xi Zhi Hoa Pu Zheng Yuan Cha (2007 Xizihao “Pu Zhan”) sold by Hou De Fine Teas. Find other reviews by Thomas at Tuo Cha Tea and Hobbes at The Half-Dipper.