The Phra Somdet by Luang Phor Khun 
made in 1994

This somdet is very traditional, simply made of Thai Buddhist magic that uses crushed sacred stones, and the magic powders created by monks through a complex process of saying kata and writing magic.

The blessing from a top monk and many ingredients are there for Metta, while others are for protection from all forms of harm, including black magic and malicious actions against you. The image of Luang Phor on the back is a classic as he used to squat while smoking hand rolled cigarettes, and in the front are 3 silver Takrut, which makes this a very special piece.

Note:
I have been working closely with Peter Jenx, author of Thai Occult and Thai Occult 2. Peter lives in Thailand and works closely with ajarns (teachers/magicians). He is a reputable source when it comes to Thai Magic.