Mitchell Crime Investigation Unit detectives are investigating several burglaries on rural farming properties earlier this month, Victoria Police say.
Police have been told that between 14 and 16 June, three burglaries were committed in Pranjip and Wahring with the offender taking jewellery from each property.
On 24 June a subsequent burglary was committed on another rural property in Moorillim, with the offender taking jewellery and a quantity of cash.
Police have released a composite image and a description of a man that they believe may be able to assist with their enquires.
The male is believed to be about 35 to 40 years-old, approximately 188cm tall with a skinny to medium build, wearing a yellow and blue hi-viz jumper.
Anyone with information is urged to contact the Mitchell Crime Investigation Unit on (03) 57350259 or contact Crime Stoppers.