Police are appealing for witnesses after a robbery at McColls Newsagents in Chiltern Avenue, Bedford at 5.15am on Sunday, December 14.
The shop manager was bringing in the Sunday newspapers when she was approached by a man who threatened her with a knife before forcing her into the rear of the store.
The offender forced her to open the safe and put the stolen cash into a grey holdall before leaving the store.
The offender is described as a white male in his thirties, about six foot tall, well built, wearing dark clothing and a stocking over his face. He was wearing a black hat, black scarf, black clothing and thin black gloves. He may have had long blonde hair.
Anyone with information relating to this incident can contact Surinder Ram, in confidence, at Bedfordshire Police on 101, or text information to 07786 200011.
Alternatively you can contact the independent crime fighting charity, Crimestoppers, anonymously, on 0800 555 111.