Lot Measuring and Drawing Instruments

1) French proportional compass, c. 1800, Paris, calibration on the front: "Les Cordes" and "Les Metaux"; on the back: "Les Parties Egales" and "Les Polygones", length 6 2/5 in., total length 12 4/5 in. – 2) 4 transverse rulers, brass, graduated in feet, marked: "Ertel & Sohn", "R. Stiller" and "Echelle de 110 Verges". – 3) Model of an inch vernier, Germany, c. 1820, in a case lined with goatskin. – 4) Folding ruler, Germany, c. 1830, brass and oak, length markings in centimeters and Hanover feet, length when unfolded 23 in. – 5) Folding ruler, Germany, c. 1830, brass, length markings in centimeters and feet, length when unfolded 23 in. – 6) Table of length measures, brass, c. 1830, Schu measures for Paris, the Rhine, Nuremberg, Munich and Frankfurt, plus decimal Schu. – 7) Reduction compass, c. 1830, J. Kern, Aarau, brass and steel, length 8 ? in. – 8) Planimeter, unmarked, c. 1870, brass, in a velvet-lined case. – 9) 2 set squares in a slipcase, c. 1880, Neuh?fer & Sohn, Vienna. – 10) Tracing compass, unmarked, ebony and original lacquered brass, interchangeable tips, in mint condition in a box. – And: 11) 3 further items.

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)