The world's biggest Nahm Phi sword on display in a small museum, in front of the Provincial Hall of Uttaradit.

The sword is 9.24 meters long and weighs 450 kilograms. Both the wooden handle and the scabbard (fak) are made of Chrysantha cedar (Crudia chrysantha), decorated with silver and mother-of-pearl.

This large sword honours the region's ancient tradition of forging quality steel swords, as well as other weapons of war.