Detectives are hunting a man after a broad daylight attack in Chippenham.
The suspect is alleged to have seriously injured a man, aged in his 50s, on The Bridge shortly before midday on Saturday 26 October.
The victim required hospital treatment, Wiltshire Police said.
Now, detectives are working to track down a man – pictured on CCTV – in connection with the assault.
“We would like to hear from anyone who recognises the person in this CCTV image”, a force spokesperson said.
Adding: “Anyone who knows who this person might be is asked to call us on 101 quoting log 54240126590.
“You can also leave information anonymously by calling Crimestoppers on 0800 555111.”