The incident took place around 3:15 a.m. Friday at Mrs. K's Restaurant located at 325 Chestnut Street.
Surveillance video shows a white vehicle pull up outside the restaurant and the male suspect exit the driver side door.
The suspect then used a key to open front door.
Once inside, the suspect removed one cash register drawer and placed it inside his vehicle.
He then attempted to remove the main cash register drawer, but it was bolted to the restaurant counter.
After an unsuccessful attempt, the suspect fled in his vehicle and was last seen east on Chestnut Street.
The suspect is described as a white male, 20 to 30 years-of-age, thin build, short dark hair, with a tattoo sleeve and several tattoos on his left arm and a tattoo on the inside of his right forearm, wearing a white hat with NY on it, yellow shirt, tan calf length shorts and Nike sneakers. He was driving a white sedan possibly with tinted windows.
Anyone with information should call dial 215-686-TIPS (8477).