"The Royal Navy during the Second World War" The interior of a 6 inch triple Mark XXIII mounting on board HMS JAMAICA. Note the crew wearing anti flash gear. From this angle you can see the centre and right 6 inch Mark XXIII guns of the three contained within this turret. The crew member in the foreground has over his shoulder a 30 pound cordite propellant charge. Note a further charge is emerging from the cordite hoist in the floor. It is still in its protective case.