Police are appealing for witnesses following an armed robbery at a Post Office in Milton Road, Ellesmere Port.
A man entered the McColls Post Office at 4.55pm on Friday, December 20 and threatened a member of staff with a weapon - believed to be a handgun type firearm - and demanded money.
The offender stole a quantity of cash and fled the scene.
He is described as white, 5ft 2ins tall, possibly in his early 20s, and thin to medium build. He was wearing a black woollen balaclava with roughly cut holes for the eyes and mouth and a dark coloured hooded top with the hood up.
DC Tim Cope said: "The firearm was not discharged and the staff member, although unharmed was left shaken.
"The area is busy with shops and a pub nearby and it's likely there will have been lots of people around at the time.
"We would appeal to anyone who saw suspicious activity or saw the man entering or leaving the post office to contact police."
Anyone with information should contact Ellesmere Port CID on 101 quoting incident number 704 of December 20, 2013.
Alternatively, information can be given anonymously by contacting Crimestoppers on 0800 555 111.