The coins stolen were similar to those above
Other items including a gold chain and bracelet, and a Rado watch, were also taken from the property on Bredle Way.
The pieces were taken sometime between 6am and 5.20pm on Thursday, 16 July.
An investigation is underway.
Police would like to speak with anyone else who was in the area at the time and saw anything suspicious.
Anyone who has been offered items for sale similar to those stolen are also asked to contact police.
If you have information, contact PC Manoj Patel at Grays CID on 101 quoting reference 42/105904/20.
Alternatively, you can also report online at https://www.essex.police.uk
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