Police are looking to identify this man after a fake Scottish £20 note was used in a Spar in Fleur-de-Lis.
The note was used in the High Street shop at around 4pm on Monday, August 22.
Gwent Police has urged retail staff to be extra vigilant.
Anyone with information about the fake note, or who recognises the man, can call Gwent Police on 101 quoting log 337 22/08/16.