The piece containing black and white photographs was among a number of sentimental items stolen in a burglary in Gayton, near King's Lynn.
Others items which were stolen included a gold zigzag style eternity ring as well as cash and coins.
Officers are keen to speak to anyone who witnessed anything suspicious on Hills Crescent between 6.45pm and 10.30pm on Tuesday evening.
Contact PC Rebecca Messenger at King's Lynn police station on 101 or call Crimestoppers anonymously on 0800 555 111.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here