Large Lot of Optical Books, 1843 onwards

Approx. 22 English books, including: Rev. Dionysius Lardner and David Brewster: "The Cabinet Cyclopaedia and Optics", 1843, 383 pages. – Humphrey Lloyd: "Elements of Optics", 1849, 115 pages. – S. Parkinson: "A Treatise of Optics", 1870, 352 pages. – "Photographic Optics", 1867, with chapter on "Ross' Photographic Lenses, Microscopes and Telescopes", 259 pages (spine lose). – 2 x J. Traill Taylor: "The Optics of Photography and Photographic Lenses", 1892 and 1904, 260 and 270 pages. – R.S. Heath: "A Treatise on Geometrical Optics", 1895, 388 pages. – 2 x Conrad Beck and Herbert Andrews: "Photographic Lenses", 5th and 6th Edition, c. 1890. – Thomas R. Dallmeyer: "Telephotography", 1899, 147 pages and 4 other "Dallmeyer" catalogues, c. 1912–1926. – Carl Zeiss, Jena: "Photographic Objectives", 1901, 126 pages. – Robert Smith: "Cours Complet D'Optique" (in French), 473 pages. – 2 small "Ross" catalogues. – Aldis' catalogue and 10 other books on optics. – In addition: 10 additional books (other photo topics). – Have a look!

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)