3 Brass Lenses, 1900 onwards

1) Meyer, Görlitz. No. 6308, Aristostigmat 7,2/180 mm, DRP 125560, in Unicum shutter, works. This Gauss-type was a very successful lens construction worldwide. This is an example from the probably first year of production, important collection piece to the history of lenses. (3/3) - 2) Rodenstock, Munich. No. 3388, Doppel-Anastigmat Lumar 7,5/48 cm, as before, the same Gauss-type. Good, equal sharpness over the entire field, large angle of view, on back lens is exactly in the middle a matt dot of approx. 3 mm, and is seen in the picture from stop 44 and more, could be used for 12x15-inch user, otherwise glass is clean. A heavy, solid Rodenstock lens from the probably first year of production. (3/3-) - And: 3) Busch, Rathenow. Busch's Vademecum, casket lens set complete with 7 lenses, 2 distance rings, 4 filters and English instructions for all combinations. In case. (3/3)

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)