Altogether 4 different issues: 1 x Hillmann The cylinder gear. Construction and repair of cylinder clocks, Leipzig: Verlag Uhrmacherwoche, 1927, 1 x Reute book Der Uhrmacher. A textbook and reference book for every watchmaker, photo-technical reprint of the edition from 1951 - 2001, 1 x Martinek - Rehor Mechanical Watches, Berlin: Verlag der Technik, 1981 and 1 x Hanke Die Uhrmacherlehre, Leipzig: Uhrmacher-Woche, 1923, unchecked, different Signs of age and wear (e.g. cover damaged, soiled)
