- Museum
- The Museum of Scottish Lighthouses
- Date
- 1893
- Object Number
- SLM.2016.297.1-11
- Title
Third Order Dioptric Lens from Helliar Holm Lighthouse
- Object Category
- Lens
- Object Name
- Lens
- Description
Made by the Barbier Company, Paris, this smaller Third Order Lens could not produce a flash. Instead a shutter would spin round the light on the inside of the lens to produce a flash sequence.
- Acquisition Number
- SLM.2016.297.1-11
- Location
- Exhibition Area/Museum