4 Microscopes and Other Items

1) Seibert laboratory microscope, c. 1885, marked on the tube "Seibert in Wetzlar", polished brass, double-mirror, swiveling iris diaphragm, together with height-adjustable condenser, rotating stage, triple-nosepiece, coarse and fine adjustment, 1 ocular, 3 objectives, height 13 1/3 in. - 2) E. Leitz, Wetzlar, c. 1923, no. 214284, polished brass, black-lacquered iron base, fine and coarse adjustment, 1 eyepiece, 3 objective lenses in turret, pinhole disk, double mirror, height 12 1/2 in. - 3) E. Hartnack, Paris, c. 1895, original lacquered brass, black iron base, sliding tube, fine adjustment with knurled screw, iris diaphragm, single mirror, tilting stand, bull's-eye magnifier, 1 eyepiece, 1 objective, height 11 in., in mahogany case. - 4) Otto Teichgräber, Berlin, c. 1920, no. 4241, original finish, rack-and-pinion coarse adjustment, fine adjustment with micrometer graduation, rotating stage, condenser, iris diaphragm, double mirror, 1 eyepiece, 3 objectives in turret, height 12 ½ in. - 5) 4 brass containers by Carl Zeiss, one with objective. - And: 6) 6 vacant wood microscope cases.

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)