A man stole £4,000 in cash from a pub in Sleaford, prompting a CCTV appeal from the police a month later.
Lincolnshire Police released CCTV stills of a man they would like to speak to in connection with the theft from the Marquis of Granby on Northgate.
The man walked into the Sleaford pub on December 2 and stole the cash before walking out of the property.
Police have not specified whether the man pictured is a suspect or a witness.
Anyone who recognises the man can call 101, quoting incident 285 of December 3.