Calculating Aids and Toys

1) "Roka - Der rechnende Federkasten", Germany, c. 1930, lithographed tin cylinder with multiplication table and cavity for storing writing utensils. - 2) "Rechenmax", c. 1930, an entertainment game for young and old, Kuhlemann Verlag Stuttgart. - 3) "Consul - The Educated Monkey", c. 1930, lithographed tin, with instructions in paper sleeve. - 4) "My Adding Box", c. 1950, Lodge Manufacturing Co., USA. - 5) "Leo Rechenhilfe", c. 1955, System Schulrat Leo Rothaug, by Theodor Zöller in Nuremberg, in box. - 6) "The New Magic Adder", c. 1955, Londontoy, lithographed tin, in box. - 7) "Arithmetic Game No. 270", c. 1960, Buffalo Toy and Tool Works, USA, mathematical quiz game, lithographed tin, in box. - 8) "Hoch verloren - Wenig gewonnen", c. 1930, German wood toy, without dice, in box. - 9) "Der kleine Rechenkünstler", c. 1930, DRP, mechanical calculating board, cardboard. - 10) "Rex - The calculating dog", c. 1960, Hammerer & Kühlwein, lithographed tin, spring drive, works, in box. - 11) 3 mechanical calculating games, c. 1950, lithographed tin. - And: 12) "Kuhn's Drill Test", c. 1950, American arithmetic game, lithographed tin.

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)