Thieves stole around £100,000 worth of jewellery from a car parked outside a leisure centre.
A red and black bag containing the jewellery and £4,000 cash was stowed away in a car while the victim was parked near Brentwood Leisure Centre on October 23.
Essex Police says that the victim attended an antiques event at the centre before their car was broken into.
Two suspects were seen walking from the leisure centre towards a nearby car wash on Doddinghurst Road.
Police have released pictures of two men they would like to identify, who they believe can assist with their enquiries.
Anyone who recognises the men, the jewellery pictured or who has further information is asked to contact police.
Information can be shared by visiting essex.police.uk/digital101 or calling 101 quoting 762 of 23 October.
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