EVB2937772: Interior room of the Electric Telegraph Office at Charing Cross, London. British telegraph equipment was based on the Cooke-Wheatstone patent, the clock-like devices along the walls, in which the receiver pointed to the letters on a dial, which spared operators the task of translating code / Bridgeman Images
EVB2937963: Four engine passenger plane of the Imperial Airways refueling from a Shell Oil Company mobile fuel tank at Semakh, in north Palestine in October 1931. Imperial Airways was the early British commercial long range air transport company, operating from 1924 to 1939 and serving parts of Europe and the extended British Empire / Bridgeman Images