北大年府
Phaya Tani (; also Nang Phraya Tani, or Seri Patani in Malay) is a 17th-century siege cannon from Pattani Province in southern Thailand. It is the largest cannon ever cast in what is now Thailand, measuring 2.7 m long (9 feet) and made of brass. It is on display in front of the Ministry of Defence, opposite the Grand Palace in Bangkok. The cannon still serves as the symbol of Pattani Province and it has been on the official seal of Pattani Province since 1939.