Police are appealing for witnesses following the robbery of a shop in Wistaston Road in Crewe.
At 8.08pm on Friday 1 March 2013, a man entered Owens General Store and approached a member of staff threatening her with a knife and demanding money.
The man then took a quantity of notes and fled the scene. He was last spotted heading along Flag Lane towards Batemans Court.
The assistant was unharmed but was left shaken by the incident.
DC Andy Dixon said: "We are making extensive enquiries to trace the person responsible for this and would appeal to anyone who may have information to contact us."
The offender is described as white, 5ft 9ins to 5ft 10ins tall and of slim build. He had a local accent and was wearing a woollen knitted hooded top over his head, and grey Adidas bottoms.
Anyone with information should contact DC Andy Dixon on 101 quoting incident 873 of 1 March 2013.
Alternatively information can be given anonymously by calling Crimestoppers on 0800 555 111.