An underwater archaeologist examines a Preston Patent Illuminator set into the upper deck of HMS Erebus (2014)
| Created by: | Parks Canada/Thierry Boyer |
| Archive: | Parks Canada |
| Collection: | Parks Canada 2017 release |
| Reference number: | 89M0626EF |
| Date: | 2014 |
| Notes: | Parks Canada underwater archaeologist Ryan Harris examines a Preston Patent Illuminator set into the upper deck. An Illuminator was a round glass prism contained in a circular brass flange that served to direct ambient outside light into the dark interior space below deck. Wreck of HMS Erebus. |
