Police are investigating a robbery at a jewellery store in Maribyrnong last week, Victoria Police say.
It is believed a male offender attended the Rosamond Road store about 2.30pm on 17 October.
He jumped the counter, smashed a display cabinet and scooped jewellery into a bag.
The man pushed a female staff member on his way out of the store and fled in a white 1997 Honda Accord with more than $100,000 worth of items.
The car has since been recovered.
The 82-year-old victim was taken to hospital for observation.
Maribyrnong Crime Investigation Unit detectives are investigating and have released CCTV of a man who may be able to assist police with their enquiries.
Investigators are urging anyone with information to contact Crime Stoppers.