Hertfordshire Police have released a CCTV picture of a man they want to trace in connection with a post office robbery in Stevenage.
The raid happened at the Martin's Newsagent's in The Oval at 4.20am on Friday 18 January.
It is believed a man approached an employee as she was opening the shop, threatened her with an unknown item and demanded she hand over cash. The man made off with cash. The woman was not injured during the incident.
Police have also released a picture of a red bad which the man made off with in the hope someone will recognise it.
If you have any information call the Local Crime Unit in Stevenage via the non-emergency number 101 or Crimestoppers on 0800 555111.