Gold jewellery was stolen during a reported burglary in the uphill area of Lincoln.
Suspects entered a property on Greetwell Close in Lincoln between 4.45pm and 6.10pm on Monday, July 1.
Police said it is possible that a vehicle was used, but this is not confirmed.
Anyone in the area at the time with dashcam or CCTV footage, or who saw anyone acting suspicious or a vehicle out of place, should contact police on 101 quoting incident 388 of July 1.
It can also be reported through the independent charity Crimestoppers anonymously on 0800 555 111.