Police in north Flintshire would like anyone with information about the theft of a six foot wide trailer light board belonging to the RNLI to contact them.
The £150 light board was stolen from the beach at Talacre on Sunday January 24 between 10-11.30am while the life boat was carrying out exercises.
The registration plate attached to the board is HG54 ZPC.
Anyone with information should contact North Wales Police on 101 or 0845 607 1001 (Welsh line) 0845 607 1002 (English line) or Crimestoppers anonymously on 0800 555 111.
