3" 20cwt AA projectile

Has any come across a projectile for the 3" 20cwt AA gun used during the first Blitz with Zeppelins during the first world war on London. I have only seen them in coloured ordnance drawings, just wondering if any are about. Would the same projectile be used during WW2 in the second Blitz with the Luftwaffen or would this type be updated during the interwar years.