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Title: Operator sending a message on a Morse electric printing telegraph, 1887. Artist: Unknown
Caption: Operator sending a message on a Morse electric printing telegraph, 1887. He is tapping out the message with a key using the code developed by Samuel Morse and Alexander Bain. Under the table are wet cells (batteries) supplying electricity.
Credit: Album / Oxford Science Archive / Heritage Images
Image size: 3222 × 3254 px | 30.0 MB
Print size: 27.3 × 27.6 cm | 1268.5 × 1281.1 in (300 dpi)