The flare gun used on the ill-fated HMY Iolaire has been discovered on the seabed.
Diver Chris Murray spied the historical artefact while exploring the wreck site and has now handed it over to Museum nan Eilean.
The gun would have been used to send out a distress call from the ship which had struck the rocks at the Beasts of Holm on New Year’s Day 1919.
Over 200 island men returning from World War 1 were lost in the tragedy.
Describing the find, Chris said: “I knew the significance of this artefact once I realised what it was and sat there for a while imagining the horrors which would have taken place in the stormy waters above me back in 1919 and yes it was a strange and sad feeling.”