Police have released CCTV images of a man they would like to talk to concerning a robbery in Minster Yard, Lincoln, on March 20.
As previously reported, a 67-year-old Newark man was taken to hospital after he was mugged outside Lincoln Cathedral.
The victim was on Minster Yard near to the arch facing the cathedral at around 4.50pm when a man approached him, pushing him to the ground and stealing his wallet.
It is believed the offender ran off down Steep Hill following the incident. The wallet was later recovered.
The victim was not seriously injured in the incident but was taken to Lincoln County Hospital for treatment.
Anyone who recognises the man pictured should contact Lincolnshire Police on the non-emergency number 101, quoting incident 305 of March 20.
Alternatively, people can contact the independent charity Crimestoppers anonymously on 0800 555 111.