An English Table Orrery, early 19th Century

With 1 ½-inch (3,6 cm) earth made up of twelve engraved and lightly outlined paper gores, orbiting moon on tilting plane above scale engraved from 1 to 29 ½, five carved and painted bone planets: Mercury, Venus, Mars, Jupiter with four moons and Saturn with ring and seven moons, 5-inch (12,7 cm) brass sun ball and hand-operated geared brass mechanism mounted between plates with turned pillars, on baluster-turned ebonized base with 16-inch (41 cm) engraved paper scale showing Gregorian calendar, zodiacal calendars by signs and sigils and table of "The Solar System" by planet, mean distances and diameters in English miles, proportional magnitude, proportional velocity per minute and periodic times, height 16 in. (41 cm) at tallest point, some minor losses, good overall condition.

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)