One of the collectible batch of Luang Pu Yid cause of the coding imprint. The code had since been destroyed to prevent fakes being created.
It was in fact created 1 year later but without the original coding.
Made to raise funds for hospital building or equipment buying (can't remember)
But as this is of silver material, the price is definitely worth it's value. As silver made amulets are pretty costly especially for renowned Masters and this is Luang Pu Yid, one of the most powerful Palak Masters .
Carry it for Maha Saneh, better business or sales & protection from bodily harm and dangers