Police are hunting a man over the alleged rape and sexual assault of two teenagers in east London in the 1980s.
James Smith, also known as Jimmy Smith, is believed to have been last seen at the George Tavern Pub in Commercial Street, Tower Hamlets, in November 2015.
Scotland Yard want to talk to him in connection with rape and assault allegations dating back to between 1981 and 1987 in Tower Hamlets.
The two victims were aged under 18 at the time, police said.
The allegations were first reported to police in 2013, but officers have been unable to locate Mr Smith.
DC Hannah Stewart of the Met's Sexual Offences Exploitation & Child Abuse Command said: "Enquiries to trace James Smith in connection with this investigation have so far been unsuccessful and by launching this appeal we hope that someone will be able to provide us with vital information that will lead us to him.
"If you believe you have come across Mr Smith in recent years, we would like to hear from you."
He is originally from the Scottish Highlands and used to live in Glasgow where he worked as a bus driver.
He moved to London in 1980, and lived in the Poplar area of east London.
Mr Smith had light ginger hair. He would now be aged between 65 and 75, and an e-fit drawn up by detectives gives an idea of how he might look today.
He is also known to have a brother called Joe or Joseph.
If you have any information, call DC Hannah Stewart on 020 8217 6552. Alternatively call 101, Tweet @MetCC or contact Crimestoppers on 0800 555 111 if you wish to remain anonymous.