Hobsons Bay Crime Investigation Unit detectives are investigating a burglary in Altona.
It is understood an unknown man entered a residential address on Railway St North between 9.45am-11.45am on Monday, June 26.
Police believe the man has forced entry to the address, before stealing items of sentimental value, including earrings, pearls, and watches.
He is described as being approximately 180cms tall and of slim build.
He was seen wearing a black puffer jacket, grey pants, black runners, a black cap and carrying a black backpack.