A man wearing a straw hat held up a branch of Lloyds Bank in Reigate High Street last Friday Afternoon (29 May).
The man, who was thought to have been armed, escaped with a small quantity of cash following the robbery just before 4:45pm.
The man is described as white and stocky, around 5ft 11 inches and apart from the straw hat was wearing a blue and green checked shirt, and dark trousers. He was also carrying a distinctive green plastic carrier bag.
If you saw anything, then police would very much like to hear from you, please call them on the usual non emergency number 101.
If you have any information please contact Surrey Police on 101 or report it online at https://my.surrey.police.uk/splonlinereportingweb quoting the reference number P15137529.
Alternatively you can contact the independent charity Crimestoppers anonymously on 0800 555 111.