Three patrol aircraft over Manila bay during a SEATO exercise in 1963. Depicted are: A Lockheed SP-2H Neptune of No. 10 Squadron, Royal Australian Air Force, a U.S. Navy Martin P-5B Marlin of patrol squadron VP-40, and a Short Sunderland MR.5 of No. 5 Squadron, Royal New Zealand Air Force. Corregidor island is visible in the background.