An unwrapped moist towelette bearing the Malaysia Airlines logo that washed up on a West Australian beach has been examined in the hopes it could provide a clue to the final resting place of MH370.

The packet was sent to Canberra for testing after being discovered on July 2 last year by retired couple Kingsley and Vicki Miller as they walked along the beach at the coastal town of Cervantes.

• "We had been saying, 'let's look for stuff from MH370'," Mr Miller said.
• They handed the packet in to the police, from whom it passed eventually to the Joint Agency Coordination Centre in Canberra.
• Mrs Miller said the Malaysia Airlines logo had been clearly visible on the packet.
• However, the JACC has refused to release a photograph of the original find and has withheld comment on the significance of the find.
• The centre has only said it is unlikely the towelette will be able to be conclusively linked to MH370.
• Experts have said it would be possible for the small package to travel long distances without being damaged.
• Oceanographer Professor Charitha Pattiaratchi of the University of Western Australia said debris from the flight could wash up on any beach from Cervantes to Esperance.
• MH370 disappeared a year ago with 239 people on board.
• A search for wreckage is underway in the Indian Ocean, but no sign of the plane or its passengers has yet been found.
• Air searches have covered an area of more than 4.5 million square kilometres, while four ships are now carrying out a search of 60,000 square kilometres, with just under half that area scoured so far.