Workmen uncovered an unexploded shell when digging footings in a residential garden in Raynes Park, South London.
After realising the potentially hazardous nature of the device, the workmen called in the Police who put a security cordon in place prior to the arrival of an Explosive Ordnance Disposal (EOD) team.
The EOD team removed the device for safe disposal elsewhere.
Many thousands of Anti-Aircraft (AA) shells were fired in defence from heavy gun batteries during German air raids on London during World War Two.
See: https://www.swlondoner.co.uk/news/02102020-raynes-park-unexploded-artillery-shell/