Ajahn Pleang Boon Yeun
This is made in 2549 during Wan Wai Kru or known as Teachers Worshipping Day. A practitioner's highly important day annually to pay utmost respect to their teachers or masters known as Kru in Thai.
Also made with Herbs and Prai 59 that is close to Khun Paen Prai 59 in 2541 but....... much more concentrated as very very few were made for close disciples attending and contributing to the ceremony .
I've also seen quite a few numbers of FAKES for Bucha Kru series but not as rampant as Prai 59 or Seryob Marn or even Pidta. And their quality is also inferior so as of date, is still not much challenge to authenticate.
Of course, every piece of Genuine Ajahn Pleang amulets are known to deliver that EXPLOSIVE "SANEH" that many had never experience before.
Then again..........IT HAS TO BE A MKC's GENUINE PIECE