Collection of Zeiss Microscopy Cameras, 1910–80

1) Carl Zeiss, Jena. Stereo camera no. 347 for 6 x 13 cm plates, c. 1910, M + Z shutter, height 15 cm including mount. (3/3) – 2) Zeiss Ikon, Stuttgart. Contina type for 24 x 36 mm on 35mm film, c. 1955, with beam splitter, eyepiece, and shutter (1–1/125 sec.). (2-/3) – 3–4) Carl Zeiss, Jena. Werra type with shutter and beam splitter, and a slightly different version with shutter only. (3/3) – 5-6) Zeiss Ikon, Stuttgart. Type 522/24 with Zeiss right-angle attachment and shutter, 2 adapters, and wooden case. And "Ikonta" type 522/24 with shutter. (2/3) – 7) Type based on Contarex, shutter 1–1/500 sec., functional, compatible with interchangeable magazines. (3/2) – 8–9) C 35, in 2 versions. (2/3) – And: 10) Attachment for a camera, such as a Contax. Carl Zeiss Jena no. 16888 with round focusing screen, formats 24 x 36 mm and 30 x 40 mm, c. 1938, with Zeiss Ikon shutter and case. (2-/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)