The Rattanakosin Kingdom is the fourth and present traditional centre of power in the History of Thailand (or Siam). It was founded in 1782 with the establishment of Bangkok as the capital city. The maximum territorial extent of the Rattanakosin Kingdom included the vassal states of Cambodia, Laos and some Malay kingdoms.
In Rattanakosin Kingdom , in term of weapon a gun made from metal and bronze . A mixture are copper and tin . Formerly known as the ‘’golden gun’’ ,which is a good gun .It is more expensive than steel gun .