An artist's impression of the man found dead on Perranporth beach last Tuesday has been released by Devon and Cornwall police.
It is hoped that the picture might help the public and authorities identify the mystery male who died in suspicious circumstances.
The body, naked except for socks and a single shoe, was found at high tide a week ago today.
Police have said he was between 50 and 70 years old, of thin build and between 5ft 5ins and 5ft 7ins tall.
He had white receding hair, which was bald on top, and a thick white bushy beard.
DCI Dave Thorne, senior investigating officer, said: “We believe the artist’s impression is a true likeness of the man we are trying to identify.
“As you can see from the image he has some distinctive features including a bushy white beard and white receding hair.
“It’s been a week since his body was found on Perranporth beach and his identity is still a mystery.
“By releasing this image we are hoping that someone will recognise him and come forward with his name, allowing us to progress with the investigation and bring us a step closer to finding out what has happened to him.
“He is someone’s brother, father, uncle or friend and someone somewhere will be missing him.”
The police have also appealed for information about a black and white woolly hat and a green/blue rucksack which was found on Perranporth beach last Tuesday.
Police are treating the death as suspicious as it is still not clear how the unidentified man died.
The body was discovered by a dog walker at approximately 2pm on Perranporth beach near the Watering Hole pub.
Officers from the major crime investigation team do not know whether the man drowned or died by another means.
But police said multiple injuries on the body were caused by something other than rock or sand abrasions from being in the water.
The force has suggested that the man could have been on a boat or ship before going into the water.
They estimate him to have been in the sea for between 12 – 24 hours.
Anyone with information about the artist's impression or the items found should to call police on 101 quoting log 381 of 1 March.