Japanese whale chasers Seki Maru No. 7 and Fumi Maru No. 3 bound for the Antarctic according to the Australia Station Intelligence Summary dated 1 May 1955

An item reported that the Japanese whale chasers Seki Maru No. 7 and Fumi Maru No. 3 visited Fremantle, Australia underway to join the Japanese whaling fleet in the Antarctic.

Source

Website Royal Australian Navy, Sea Power Centre.