Projectors for 9 x 12 cm and for 6 x 9 cm

Both devices could be used as they are today. 1) Unger & Hoffmann AG, Factory for Projection Apparatus, Dresden-Berlin. Model "Siegfried", c. 1900, beautiful wood, probably reddish-stained and polished beech, L/W/H 66 x 25 x 47 cm, more recently converted for 220V/150W projection bulbs, including a modern double condenser, working, with a hidden switch inside. The 15 cm ? condenser at the front of the device is cleverly designed to be lifted for cleaning. Green interchangeable bellows, extension to approximately 35 cm, with a Rodenstock Splendon 250 mm interchangeable lens in a focusing mount.

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)