Lexikon der gesamten Technik

The Lexikon der gesamten Technik is an illustrated German-language encyclopedia of architectural, engineering and manufacturing technology, written by Otto Lueger and first published in 1894.

Editions

1st Edition, 7 volumes, 1894–1899
2nd Edition, 8 volumes, 1904–1910
3rd Edition, 6 volumes, 1926–1929
4th Edition, 17 volumes, 1960–1972