The first proper history of German chronometer manufacture
Printed boards, 500 pages, 148 black & white and colour images. Verlag Hauschild, Bremen, 2012.
Though the text is in German, there are a great deal of good images and useful tables, not least a full list of chronometers entered in the Hamburg Trials, from 1877 to 1914, as well as a list of Kullberg chronometers supplied to German retailers. An invaluable history, worthy of every horological library - recommended.
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