Luang Pu Cheun Thìkàyano
This piece features Khun Paen with His son which is also a Gumanthong. In the tale, Khun Paen is invincible when He is with His son. Guman in amulet also means to bring much Maha Saneh (Charms) and improve wealth & luck.
The consecrated Yinku embedded behind is for more Maha Saneh properties to wearers. With Saneh, relations with everyone improves thus whatever you do becomes easier and smoother. This piece is also believe to give "Saneh Luam Phed" or attraction of the opposite gender.