Detectives are hunting robbers who punched and tied up a post office worker.
The two men - who had their faces covered - forced their way into the store on Southgate in Elland at 6.40pm last night.
They punched a man who works there before tying him up and forcing him to sit on a sofa.
After around half an hour, they escaped with a substantial amount of cash in a vehicle - believed to be a blue Astra - parked at the back.
The vehicle drove off along Huddersfield Road towards the Co-op and then out of view.
The victim suffered a minor bruise above his eye.
Anyone who witnessed the raid are asked to call Calderdale CID on 0845 6060606 or CrimeStoppers, anonymously, on 0800 55511.