Mar 13 1918 “13 pounder (13pdr), 9 Hundr…

Mar 13 1918 “13 pounder (13pdr), 9 Hundredweight (9cwt) anti-aircraft gun on a Mark IV Motor Lorry Mounting seen in action at St. Vaast” https://t.co/5zk3QhIpVQ https://t.co/7MNZvWw8oH http://twitter.com/ThisDayInWWI/status/973322244645507072