2-791-681 - The Print Collector/Heritage Images

The General Post-Office; The Office Letter Railroad, 1844. Worker at the main post office at St Martin's Le Grand in London loading mail on to: 'a kind of tram-way...upon which waggons are drawn by means of a jointed chain worked by a simple crank...Mr. Barrow was the inventor of this mode of transfer'. From "Illustrated London News", 1844, Vol I.