Group of Telegraph Accessories, 1880 onwards

1) Austrian relay, original lacquered brass, mahogany base. – 2) American relay, marked "C-85". – 3) Gooseneck relay by Western Electric, USA. – 4) Sounder by Signal Electric Mfg. Co., USA. – 5) Italian postal key by Forcieri, with unique circuit-closer paddle. – 6) 2 German landline keys, unmarked. – 7) Key by Eric Torngren, Sweden. – 8) Ericsson postal key, Sweden. – 9) 2 unmarked keys. – 10) Military key by Junker, Germany, with case. – 11) British key, G.P.O. model 562. – 12) Swiss postal key, new version. – 13) Dutch key, model Sinus by Ridderhof & Van Dijk. – 14) Cable key with locking mechanism, probably by Muirhead & Co. – 15) Galvanoscope, by W. Gurtl, Berlin, 1879 onwards, according to the specifications of the German empire telegraph administration. – 16) Galvanometer by C. Midoz à Besançon, France, brass case on mahogany plinth. – 17) 2 unmarked galvanometers. – 18) Cathedral GPO Telegraph Signal Indicator & Galvanometer, British General Post Office. – 19) Galvanometer by Silvertown, London, no. 2531. – And: 20) Small coil on wood board.

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)