13 Calculating Machines

1) Calco, c. 1922, spoked-wheel calculator by Nordisk Regnemaskinefabrik, Danmark, 9, 8 and 13 digits, missing crank, mechanism sticks. - 2) Contex model A, 1945 onwards, Danish half-keyboard adding machine with 8 columns of 5 keys, and a 9-digit register, red bakelite case, working. - 3) Original-Odhner, c. 1920, Swedish spoked-wheel calculator, 10, 8 and 13 digits, mechanism sticks. - 4) Addo Mod. 4, c. 1920, rare adder with printer and direct result display, with pen. Worthy of restoration. - 5) Chain adder by Seidel & Naumann, c. 1910, German 9-digit adder. - 6) Original-Odhner, c. 1920, Swedish spoked-wheel calculator, 10, 8 and 13 digits, working. - 7) Exakta, c. 1950, Swedish disk adder, very rare. - 8) Original-Odhner No. 30, c. 1925, Swedish spoked-wheel calculator, 10, 8 and 13 digits, mechanism sticking. - 9) Ve-Po-Ad, American slide adder. - 10) Addo Mod. 2, c. 1918, rare Swedish adder with direct result display. - 11) Resulta BS7, toothed-wheel adder by Paul Brüning, mechanism sticks. - 12) Electric table calculator, untested. - And: 13) Comptator, c. 1910, pocket chain-adder by Hans Sabielny, made by Schubert & Salzer, Chemnitz, Germany. 9 digits, with pen in box. - Literature: Martin, p. 231.

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)