Navis Neptun 189AN HMS General Wolfe, a 12in Monitor fitted with an 18in gun, 1917 1/1250
The 18" gun was to be sent to sea in HMS Furious but when she was converted to an aircraft carrier, the 18" guns were fitted in the 12" monitors to gain more experience with the weapons in service. There was no room for a revolving turret & the guns were mounted in a shield facing to starboard. General Wolfe saw most action in this form and took part in operations off Zeebrugge in 1917 & 18.