Shrapnel and shell fragments accounted for a large proportion of those killed and wounded in WW1. Those blown into the ether by high explosive to one side, artillery accounted for around 70% of casualties. These six balls were recovered from the Thiepval Redoubt on the Somme and are German in origin. Thiepval was a slaughterhouse on the first day of the attack and, despite early success, took a savage pounding from German counter-fire.

The Battle of Thiepval. The view looking toward Thiepval on morning of attack and showing German barrage. (IWM)