![Specimen of the first transatlantic telephone cable, deep sea type, 1956 | Science Museum Group Collection Specimen of the first transatlantic telephone cable, deep sea type, 1956 | Science Museum Group Collection](https://coimages.sciencemuseumgroup.org.uk/images/46/405/medium_1960_0136__0001_.jpg)
Specimen of the first transatlantic telephone cable, deep sea type, 1956 | Science Museum Group Collection
![September 25 – First transatlantic telephone cable opened lines between U.S, Canada, Britain and Europe on 9-25-1956 – Troy Historic Village September 25 – First transatlantic telephone cable opened lines between U.S, Canada, Britain and Europe on 9-25-1956 – Troy Historic Village](https://www.troyhistoricvillage.org/wp-content/uploads/2015/09/9-25-15-Transatlantic-telephone-cable-operations-Oban-Scotland.jpg)
September 25 – First transatlantic telephone cable opened lines between U.S, Canada, Britain and Europe on 9-25-1956 – Troy Historic Village
![Can I Get a Connection? Laying the Transatlantic Telephone Cable, 1955-1956 - The Mariners' Museum and Park Can I Get a Connection? Laying the Transatlantic Telephone Cable, 1955-1956 - The Mariners' Museum and Park](https://www.marinersmuseum.org/wp-content/uploads/2021/05/P0001.004-PC407-crp.jpg)
Can I Get a Connection? Laying the Transatlantic Telephone Cable, 1955-1956 - The Mariners' Museum and Park
![Bell telephone magazine . Radio Relay Transatlantic Telephone Cable Planned The Long Lines Department of theAmerican Telephone and Telegraph Com-pany announced plans last December i toconstruct the first telephone cable systemacross Bell telephone magazine . Radio Relay Transatlantic Telephone Cable Planned The Long Lines Department of theAmerican Telephone and Telegraph Com-pany announced plans last December i toconstruct the first telephone cable systemacross](https://c8.alamy.com/comp/2CRX4RE/bell-telephone-magazine-radio-relay-transatlantic-telephone-cable-planned-the-long-lines-department-of-theamerican-telephone-and-telegraph-com-pany-announced-plans-last-december-i-toconstruct-the-first-telephone-cable-systemacross-the-atlantic-the-transatlantic-por-tion-of-the-system-with-its-many-built-invacuum-tube-repeaters-will-be-2000-nauti-cal-miles-in-length-and-will-be-laid-indepths-up-to-three-miles-on-the-ocean-floorbetween-scotland-and-newfoundland-itwill-then-connect-with-another-submarinecable-extending-300-miles-westward-tonova-scotia-from-there-a-350-mileoverland-micr-2CRX4RE.jpg)
Bell telephone magazine . Radio Relay Transatlantic Telephone Cable Planned The Long Lines Department of theAmerican Telephone and Telegraph Com-pany announced plans last December i toconstruct the first telephone cable systemacross
![September 25 – First transatlantic telephone cable opened lines between U.S, Canada, Britain and Europe on 9-25-1956 – Troy Historic Village September 25 – First transatlantic telephone cable opened lines between U.S, Canada, Britain and Europe on 9-25-1956 – Troy Historic Village](https://www.troyhistoricvillage.org/wp-content/uploads/2015/09/9-25-15-Route-of-the-first-transatlantic-telephone-cable.jpg)
September 25 – First transatlantic telephone cable opened lines between U.S, Canada, Britain and Europe on 9-25-1956 – Troy Historic Village
![Specimen of the first transatlantic telephone cable, deep sea type, 1956 | Science Museum Group Collection Specimen of the first transatlantic telephone cable, deep sea type, 1956 | Science Museum Group Collection](https://coimages.sciencemuseumgroup.org.uk/images/61/582/medium_1960_0136__0002_.jpg)