"Wrens Overhaul Warships Guns. 16 March 1943, Liverpool, Ordinance work Is Yet Another Job Taken Over by the Members of the Wrns To Release More Men For the Sea. After Taking a Course on This Very Important Subject These Girls, Now Qualified Ordinance Wrens, Board Hm Ships on Arrival To Strip Down the Guns, Clean Them and To Carry Out Adjustments." Working party of qualified Ordinance Wrens heaving on the Oerlikon's 'Cocking lanyard' to compress the recoil spring of the gun.