A bid to trace the artist behind a mysterious World War II mural in Orkney has taken a step forward after extensive BBC Scotland coverage.
Soldiers stationed at the Ness Gun Battery - which guarded one of the entrances to the naval anchorage of Scapa Flow - created the picture.
It depicts rural England, and was believed to act as a reminder of home.
Friday's BBC online, television and radio coverage has led to contact from people from around the world.
The mural is signed AR Woods.
Conservation work is due to begin on the site this year, and historians hope they can finally identify the artist.
Previous attempts to solve the mystery failed.
The Ness Battery is viewed as one of the most important World War II sites in the country.
It includes the original concrete structures - with gun emplacements and battery observation post - and also has the original 1938 wooden camp buildings.
The battery is also famed for the AR Woods mural.
The site was acquired by Orkney Islands Council from the Ministry of Defence (MoD) in 2002.
The project now forms part of the Scapa Flow Landscape Partnership, with hundreds of people attending tours.
Julian Branscombe, project manager for the Scapa Flow Landscape Partnership, said the worldwide contact - including from North America - made for an exciting weekend.
Mr Branscombe now hopes they are nearer to solving the mystery.