A Superlative Color Stereo Viewer about the NSU Factories, c. 19

Weizs?cker, Stuttgart. A foldable rollfilm stereo viewer, with an internally replaceable 12 cm wide color film strip containing 32 stereo images of 65 x 56 mm, featuring excellent explanatory images of the motorcycle production process. Colors are very well preserved, and the film transport mechanism works. Some production steps have not previously been illustrated in specialist literature. The series begins with the factory facilities, followed by sheet metal presses, welding, tank construction, electroplating, paint shops, conveyor belts, a motorcycle tank becomes visible, rim assembly, motorcycle chassis, various motorcycles on assembly lines, testing, and showrooms. From the heyday of the German economic miracle, all produced without industrial robots! – In addition: Stéréofilm Alain, Chambéry. Stereoscope for 10.4 x 60 cm film reels with 12 stereo images, including 3 film reels and their cardboard boxes. Rare.

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)