Seen in 1959, the Second World War frigate HMCS Swansea has been considerably modified to improve its anti-submarine capabilities.

Although frigates like Swansea had been effective anti-submarine vessels during the Second World War, by the mid-1950s their weapons and equipment were of limited effectiveness against newer Soviet submarines. This photograph shows a number of the modifications made to Swansea between 1953 and 1957, including new guns and a bigger bridge for commanding and operating the ship (centre). Other changes included the installation of two Squid anti-submarine mortars that replaced many of the ship's depth charges.

George Metcalf Archival Collection
CWM 19780155-001