Police are investigating after a man was attacked at a bar in Belper.
The assault hapened at the Monk Bar in King Street shortly after 7.15pm on May 27.
Officers said the 41-year-old victim was headbutted and knocked to the floor by a man after leaving the bar's toilets.
The man then punched the victim in the face several times.
The offender is described as white, 5ft 8in tall with a 'scruffy' beard. He was wearing a white top.
A Derbyshire Constabulary spokesperson said: "The victim sustained a broken nose and various facial injuries, which required hospital treatment during the incident.
"Anyone who witnessed the incident, or who was in the area at the time and saw a man matching the above description, is asked to contact us.
"Please quote reference number 19*272845 and Detective Staff Investigator Naomi Davies' name in any correspondence."