Military ordnance were located under a Goulburn home.

Military ordnance were located under a Goulburn home. Photo: NSW Police

A Goulburn man has uncovered two old grenades and a mortar round beneath his newly purchased home.

The 64-year-old man was clearing rubbish out from underneath his home on Lansdowne St at about 5.30pm on Monday, when the three pieces of military ordnance rolled out of an old tin and onto the ground.

The man contacted emergency services immediately and Goulburn police attended the home.

With the assistance of specialist police and the Australian Defence Force (ADF), officers determined the items were inert hand grenades and a mortar round.

On advice they could be safety moved, the items were taken to Goulburn Police Station.

The Canberra Times believes two of the items (the first two pictured) are hand grenades used by the Italian Army in World War II during the 1941-1942 desert campaigns.

They were nicknamed 'red devils' by the British.

The ADF will determine how to dispose of the items.