2 Cinema Gongs

1) Two-tone cinema gong, c. 1930, with sound bars and keys, on wood base, approx. 65 cm long. (3/4+) – And: 2) Jovozo cinema accessories, Germany, three-tone cinema gong, c. 1950, with three sound bars mounted in a steel tube, approx. 55 cm long. (3/3) – Both sound good when triggered mechanically, electrical functions not tested. – Note: Cinema gongs were connected to the tube amplifiers of the sound film projectors. The sound of the gong announced the end of the advertising and the beginning of the pre-program, such as cultural films or newsreels. A different sequence of sounds heralded the start of the main film after the break.

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)