An antique clock, silver ornaments and £200 of charity donations were stolen from a Silsden house.
Burglars are believed to have broken into a safe to take some of the items.
Anyone who may have since been approached and offered the distinctive items for sale have been asked to come forward.
The burglary occurred between 5pm on Sunday and 5pm on Monday at Dradishaw Road.
Witnesses or anyone with information can contact Airedale and North Bradford CID on non-emergency number 101 or Crimestoppers, anonymously, on 0800 555 111.
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