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Heliograph, c1900. Artist: Anon
1-148-698 - Ann Ronan Picture Library/Heritage-Images
Heliograph, c1900. The Heliograph, a visual telegraph for sending and receiving messages by means of mirrors and sunlight. Here a British signal unit in tropical kit is flashing a message to the fort in the distance. Trade card for Liebig Meat Extract.
Image Details
Category Hierarchy
Lifestyle & Leisure Transport & Travel
Science & Nature Technology & Innovation
Trade & Industry Communications
History & Politics War & Military Military Figures & Personnel
Digital Image Size
Pixel Dimensions (W x H) : 5096x3429
File Size : 51,194kb
Aliases
- 006363
- 006363
- 0390006041
- 1-148-698
- 1148698
- 6041