The Royal Canadian Navy used 40 mm Bofors guns like this Canadian-manufactured example on a number of post-war ships.

Made and installed in a variety of models and mountings, the 40mm Bofors anti-aircraft gun was widely used during and after the Second World War. The Royal Canadian Navy used this type of gun and mounting on a variety of ships, including the wartime frigates rebuilt as Prestonian class ocean escorts in the 1950s. These particular guns and their mounting were manufactured in 1945.

Naval Gun, Twin 40mm Bofors Mk XI
CWM 19680076-001