"Magazin aller neuen Erfindungen, Entdeckungen und Verbesserunge

Magazine of all New Inventions, Discoveries and Improvements. The "Mecca" of early technical developments at the beginning of the Industrial Revolution. 15 half-calf volumes (of 20) in German, with 575 copperplates and lithographs, as well as colorful fabric samples. Size: 8 ½ x 10 in. (21,5 x 25,5 cm). Publisher: Baumgärtner'sche Buchhandlung, Leipzig (Germany). – This publication enjoyed a run of more than 40 years. The volumes offered represent impressive overviews of technology at the beginning of the industrial age. It is a document, which proves the progress of all aspects of life, e.g. "Self-writing Autograph" to copy drawings and manuscripts …, "Writing Machine for the blind" …, The magazine reports on lithography, incunabula, printing as well as ventilation systems, lighting of public places and streets, improvements for the pianoforte, alarm systems, advantages and construction of railroads, news about new steam-boats, comments on telegraphs, washing machines, calorimeter for Montgolfiers, blasting machines, and many more curiosities, technical inventions and improvements.

布雷克拍品等级是为了方便竞买人判断拍卖品的成色而设置的。布雷克等级用1到6级来标注外观和功能的成色，(从非常好到非常差)。 在目录图册里用括号里的2个数字来表示，前一个数字表示外观成色的级别，后一个数字表示功能成色的级别。如(3/2)表示外观成色是3(满意的)，功能成色2(好)。 成色 定义参照下列标准： 1 - 非常好 (未使用过，没有使用痕迹) 2 - 好 (新，极少的使用痕迹) 3 - 满意的 (普通的使用痕迹) 4 - 及格的 (明显的使用痕迹，某个非主要部件是后配的) 5 - 有缺陷的 (极明显的使用痕迹, 某个主要部件是后配的，功能上有缺陷，需要修理) 6 - 非常差 (严重破损, 缺少重要部件)