In the year B.E.2475, a royal ceremony was held to commemorate 150 years for the founding of Bangkok as the capital of Thailand. A batch of Phra Kaew (Emerald Buddha) medals was created to commemorate this important milestone in Thailand history.
The obverse of the medal depicted the image of a seated Emerald Buddha and the reverse was a Chakra (discus) with 8 alphabets representing the Buddha’s Eightfold Noble Path. There were a few manfucateres being commissioned to create the medals, which resulted in slightly different features among the medals but remain generally the same. There were many that were created without any inscription of the manufacterer’s origin and were classified as Block Tammada (ordinary mould).