Officers investigating two Bedfordshire burglaries which took place during the day on June 1 are appealing for witnesses to come forward.
One of the break-ins took place at a property in High Street, Wrestlingworth, between 11am and 3pm.
The offenders made a messy search of the home, before possibly being disturbed as the homeowner returned.
They made off with jewellery including five pairs of cufflinks, two gold broaches and a number of engraved watches.
On the same day, between 11.15am and 1.15pm, offenders broke into a property in West End, Haynes, by smashing a rear conservatory door and again making off with items of jewellery including gold and silver medical alert bracelets.
Detective Constable Kevin Howes, investigating both offences, said: “I would like to hear from anyone who may have seen any suspicious activity or vehicles in these areas at the time, or in the last few days, to come forward with information.
“These were particularly callous offences, as some of the items stolen will have been of great sentimental value, while the bracelets were of medical importance to the owners.
“As always we want to work together with the public to identify those responsible and bring them to justice.”
Call 101, text 07786 200 011, or alternatively, contact Crimestoppers anonymously on 0800 555 111 with information.