3 Rare Magic Lantern Projection Lamps

1) Bonne Presse, Paris. Lime burner no. 1531, heavy brass device with leads for "HY" and "OX" for a mixture of hydrogen and oxygen, which, when ignited and directed onto a porous limestone, produces a very bright light for projection in large rooms. With double adjustment of the limestone. Dimensions: 26 x 12 x 14 cm, well preserved. – The burner had to be handled with care. There have been several disasters with over 100 fatalities due to such devices. Important exhibit! – 2) Quadruple gas burner, dimensions 12 x 22 x 16 cm. – And: 3) Carbon arc lamp on an Art Nouveau stand, dimensions 11 x 36 x 20 cm, equipped with 2 carbon arcs.

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)