HMS Frobisher was a
Hawkins-class heavy cruiser of the Royal Navy. She was built at Devonport Dockyard and launched on 20 March 1920. She spent the majority of her career as a cadet training ship. She saw brief service during the Second World War being used for naval gunfire support. Following the war, the vessel was scrapped in 1949.
https://en.wikipedia.org/wiki/Hawkins-class_cruiser
https://en.wikipedia.org/wiki/HMS_Frobisher_(D81)