Police have released pictures of clothing, including what could be a Sikh bracelet, they hope will help identify the man whose body lay undiscovered by a motorway for three years.
A skull and other remains were found at the side of the M54 in Shropshire and are thought to have belonged to a man between 30 and his late 40s.
Police released pictures of a jacket and bracelet as they continue to try to identify the man, who is thought to have remained undiscovered at the side of the M54 for more than three years.
The man is known to have been wearing a black "dare2be" outdoor jacket, a navy blue George at Asda T-shirt, and dark-coloured Nike tracksuit bottoms, the Press Association reported.
He was also found in possession of two bracelets, including one thought to be a "Kara" bracelet usually worn by Sikhs.
A DNA profile suggests the man was between 5ft 7in and 5ft 11in.
The remains were discovered on 20 August by a road worker on a stretch of the motorway in Telford, Shropshire.
Detective Chief Inspector Neil Jamieson, who is leading the investigation, said: “I am very keen to get members of the public to assist me and my team in identifying this individual.
"It has taken some considerable time for us to piece together a description of this individual.
"We have been working closely with the National Crime Agency, forensic experts including anthropologists, ondontologists and the forensic pathologist."
Admitting that the task facing officers is very challenging, Mr Jamieson added: "Since this discovery we have been contacted by a number of people regarding missing individuals, some of whom have never been reported missing to the police.
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"At this stage of the investigation we are still unable to ascertain the cause of his death.
"We are keeping an open mind as to how the man came to be in such a location and how he died; however, I cannot rule out that he may have been subjected to a crime, and that is something the public can help me with.
"The metal bracelets are obviously a line of inquiry and as such we have been in contact with our Sikh community locally to share this and again ask for any information as to who this man is.
"It is essential that we do all we can to identify him and return him to his family and loved ones."