Intercom Telephones, c. 1900 onwards

1) Probably England, oak case, 4-part crank inductor, double bell, handset with hygienic microphone. - 2) L.M. Ericsson. Metal case, rotary switch for thirty connections, bell, handset with speaking horn. - 3) USA, oak case, bell, height-adjustable microphone, Bell-type handset. - 4) Unmarked, black metal case, bakelite handset. - 5) Ericsson, Buffalo, USA. Small metal box with hook, handset with speaking horn. - 6) Probably England, unmarked, walnut case, switch for four connections, bell, microphone with speaking horn, can receiver. - And: 7) England, walnut case, front with brass cradle, handset with speaking horn. - In addition: Bell Set No. 20, with crank inductor, double bell, rotary switch for four connections and can receiver; switch for two connections, in walnut case; Telegrafverkets, bell box with switch for two connections, in walnut case; L.M. Ericsson, relay, in black metal case with skeleton telephone transfer.

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)