12 Brass Lenses

1) T. Armstrong & Co., Manchester. Convertible lens with 3 front elements (5 ½ in., 7 ½ in. and 9 in.), rotating stop, approx. 13 cm focal length with "5 ½ in." element, with box. – 2) Beck, London. "10 x 8 RectR", No. 2332, focal length "13 inch", iris stop, height 3,54 in., Ø 2,36 in. – 3) Morley & Cooper's, London. "Special W.A.R. No. 6 8 inch", wide-angle lens with rotating stop. – 4) "W. Banks & Co. Limited No. 91", small wide-angle lens with approx. 9 cm focal length, rotating stop, connecting ring Ø 1,96 in. – 5) Probably Clément & Gilmer. "Euryscope Anastigmat ½ Pl.", approx. 20 cm focal length, iris stop, height 2 in., Ø 2 in. – 6) A. Schellen, Münster. "Universal Aplanat Extra Rapid", iris stop, height 2,75 in. – 7) Fred. Cox, London. Landscape lens with approx.. 11 cm focal length, no. "5155", for waterhouse stop, height 3,15 in., connecting ring Ø 2,75 in. – 8) A. & N. Auxiliary C.S. Ltd. "EQ Foc. 7,37 in. 6 ½ x 4 ¾ R.R.", no. 7875, iris stop, height 2 in., connecting ring Ø 2,36 in., dent in lens hood. – 9) Aldis. "Anastigmat 7,7 No. 9", iris stop, on lens board. – 10) "Aptus Anastigmat 3/4,75 in.", iris stop, height 2 in. – In addition: 2 Bausch & Lomb lenses (not complete).

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)