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Look and Learn History Picture Library License images from £2.99

Pictures of ‘signals’ (exact matches)

Wireless telegraphy
Wireless telegraphy
Claude Chappe
Claude Chappe
Signalling by heliograph
Signalling by heliograph
Chappe's optical telegraph
Chappe's optical telegraph
Roman signals post
Roman signals post
Chappe's telegraph, 1793
Chappe's telegraph, 1793
Telephone exchange
Telephone exchange
The Age of the Train
The Age of the Train