The items were found in the west of the county during investigations ahead of the planned construction of new homes.

The bronze trumpet - known as a carnyx - is one of only three ever located in Britain and one of the most complete discovered in Europe.

The carnyx (Image: Norfolk Museums Service)

The animal-headed instruments were used by Celtic tribes across Europe to inspire their warriors in battle and fascinated the Romans, who frequently depicted them as war trophies.

The internationally-significant hoard also includes a sheet-bronze boar’s head, originally from a military standard.

Stacks of shield bosses covering the head of the carnyx (Image: Norfolk Museums Service)

Five shield........

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