3786739 Construction drawing of experimental condensing locomotive, before 1848 (pencil on paper) by Armstrong, William George (1810-1900); 37.5x91.8 cm; Tyne & Wear Archives & Museums; (add.info.: Construction drawing of experimental condensing locomotive, designed by Lord Armstrong and built in Elswick Works in 1848. This was shortly after the Works were started, and at the time of the great development of railways, and before the Armstrong Gun. The locomotive was apparently not successful and no further types were made. Sir W. G. Armstrong); byTyne & Wear Archives & Museums; British, out of copyright.