Lot of Measuring and Drawing Instruments

1) E.O. Richter Co. precision rolling ruler, adjustable feed. – 2) Ott’s universal planimeter, in a box. – 3) Parallel ruler, ebony with brass fittings, length 16 in. – 4) Planimeter, unmarked, brass, in a case. – 5) Parallel rolling ruler, ebony, length 12 ? in. – 6) 14 transverse rulers, brass, mostly metric, length up to 25 cm. – 7) Semicircular protractor, brass, base length 15 cm. – 8) Folding set square, engraved with ‘Anc Mesure’ and ‘Nlle Mesure’, with a window in one of the two legs to check perpendicularity using a plumb line, length 16 cm. – 9) 2 divider compasses, 19th century, brass and steel, lengths 11.5 and 16.5 cm. – 10) 2 brass rulers. – 11) 2 folding rulers, ebony and brass, length when unfolded 7 4/5 in. each. – 12) 5 dividers and 2 proportional dividers. – 13) A selection of early drawing instruments in a black sharkskin case, England, c. 1820. – 14) 3 small boxes containing drawing tools, none of which is complete. – And: 15) Toiletry case, England, 18th century. Silver, skilfully crafted in the Rococo style, decorated with rocaille and floral motifs, containing scissors, a spatula and a folding ruler, height 3 ? in.

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)