Catalogs, Jubilee Publications and Books on Microscopes

1) Carl Zeiss optische Werkstätte Jena, catalog No. 30, 1895, 122 pages. - 2) Optische Werke C. Reichert, Vienna, Catalog DS/4, c. 1900, 64 pages. - 3) Emil Busch, Rathenow, Microscopes and Accessories, English catalog 1925, 96 pages. - 4) Ed. Messter, Berlin, Microscopes and Accessories, price list no. 40, c. 1920, 84 pages. - 5) Carl Zeiss, Jena, Microscopes and Microscopic Auxiliary Apparatuses, 35th edition, 1912/13, 128 pages. - 6) Ernst Leitz, Wetzlar, Mikroskopische Nebenapparate, catalog No. 45D, 1912, 48 pages. - 7) Carl Zeiss, Jena, Zeiss Microscopes, catalog, 1939 edition, 182 pages. - 8) Ernst Pridat, Optik und Feinmechanik, Potsdam, catalog and price list, c. 1920, 48 pages. - 9) Carl Zeiss, Jena, Microscopes et Appareils Accessoires, Edition 33, French catalog, 1906, 114 pages. - 10) Ernst Leitz, Wetzlar, Microscopes, Catalog No. 44A, c. 1910, 84 pages. - 11) 100 years of Hensoldt & Söhne, commemorative publication from 1952. - 12) A. Nachet, Paris, reprint of the catalogu 1854-1910, Edition Alain Brieux, 1979. - 13) Ernst Leitz II, "I hereby decide: It is risked", Knut Kühn-Leitz, Heel Verlag, 2nd edition 2015, 280 pages. - 14) Offprint from the Festgabe für Ernst Leitz, Wetzlar 1941, Die Geschäftsleitung, 80 pages. - 15) Ernst Leitz, Optische Werke, Wetzlar, 1849-1949, Alexander Berg, Umschau Verlag 1949, 122 pages. - 16) Geschichte des Jenaer Zeisswerkes 1846-1946, Dr. Friedrich Schomerus, Piscator-Verlag Stuttgart, 1952, 348 pages, with dedication and signatures of 10 employees from 1957. - 17) Gläserne Wunder - Drei Männer schaffen ein Werk, F. Scheffel, Verlag Braun & Schneider, 1938, 332 pages. - 18) Carl Zeiss, Jena - Once and Now, Wolfgang Schumann, Rütten & Loening, Berlin 1962, 942 pages. - 19) Das Zeisswerk und die Carl-Zeiss-Stiftung in Jena, Felix Auerbach, published by Gustav Fischer, Jena 1907, 166 pages. - And: 20) 18 further booklets and brochures.

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)