Several watches and items of camera equipment have been stolen during a break-in on Hitchin's High Street.
Police have released images of the stolen items in a bid to return them to their rightful owner.
The break-in took place between 7.30am and 8pm on Monday, December 4.
Detective Constable Trudi Howell said: "Our enquiries are continuing, and we are appealing for anyone with information to please get in touch.
“We are releasing images of the items so that we can hopefully trace them and return them to their rightful owner.
“Have you seen the items discarded anywhere, or seen them for sale? Please get in touch if you have information that could assist our enquiries.”
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Information can be reported to Hertfordshire police online at www.herts.police.uk/ro/report or by calling the police's non-emergency number 101, quoting crime reference 41/96945/23.
Hertfordshire police's web chat function can be used by visiting herts.police.uk/contact.
Anonymous information can be given by contacting Crimestoppers on 0800 555 111 or via crimestoppers-uk.org.
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