The coronation Sema medal of King Prajadhipok was produced to commemorate the coronation of King Prajadhipok on 25 February 1926. "Sema" in Thai refers to Buddhist boundary stone which normally designed using lotus petal shape, the shape employed for amulet and commemoration medals. The obverse depicted the profile of King Prajadhipok, encircled with Thai inscription reads: "Prajadhipok, the Great King". The reverse inscribed in Thai: "Commemoration of the Coronation Ceremony 25 February B.E. 2468".