Phra Sum Kor (Thai : พระซุ้มกอ) is from Kamphaeng Phet Province. When Somdej Toh came to visit relatives in 1849, he found Phra Sum Kor amulets at Wat Phraboromthat Nakhonchum (Thai : วัดพระบรมธาตุนครชุม) together with tablets explaining amulet making process. He later used the recipe to make his own Phra Somdej Wat Rakhang. This amulet is found throughout Thung Sethi (Thai : ทุ่งเศรษฐี) in Kamphangphet. From Wikipedia, the free encyclopedia: https://en.wikipedia.org/wiki/Thai_Buddha_amulet Photo by http://thaniyo.brinkster.net/amulet04.html
A Thai Buddha amulet (Thai: พระเครื่อง), often referred to academically as "votive tablet", is a type of Thai Buddhist blessed item. It is used to raise funds to help the temple's operations. A Thai Buddhist monk will give an amulet to Buddhists as a "gift" after they donate money or offerings to the temple.