Burglars broke into a property in Weedon and stole cash and jewellery by getting in through a locked garage door.
The crime happened in a house in Harmans Way, Weedon, sometime between 2pm and 8pm on Saturday, September 7.
A police spokeswoman said: “They got in through the locked garage and then into the house through the kitchen door.
“They stole cash and various items of jewellery, which were of great sentimental value to the victim.”
Three men dressed in black were seen in the area during the afternoon of the burglary.
Police are asking anyone who may have seen anything suspicious in the area around during Saturday afternoon or evening, or anyone with information about the stolen property, to call police on 101.
Alternatively, they can call Crimestoppers anonymously on 0800 555 111.