Police are appealing to identify a man who is "believed to be able to help with a theft investigation."
At 3am on 9 July, the Boyes store on Heaton Road, Gainsborough was broken into.
A police spokesman said: "We are appealing to identify this man as we believe he can help with a theft investigation.
"If you know who the person in the image is, please contact us on one of the following ways."
Email firstname.lastname@example.org - please remember to put the reference (43 of 9 July) in the subject box;
Call 101 quoting reference number 43 of 9 July;
Call the independent charity Crimestoppers, anonymously, on 0800 555 111 or visit crimestoppers-uk.org