Eagle III Aerial Camera, 1940 onwards

Williamson, London. Serial no. 106, for 129 x 127 mm images on 141 mm wide rollfilm, glass pressure plate with engraved numbers on the side, blade shutter behind lens 1/40–1/140 functioning, Ross London Wide Angle Xpres 4/6 inch lens no. 118063, iris diaphragm up to f/11, screw-on yellow filter, blank space between exposures for imprinting the exposure number, time, notes, altimeter (meter scale), and time (clock made in Switzerland and altimeter with Williamson engraving). Eagle III film magazine no. 252 for 66 mm wide film reels, film counter for 145 exposures. Accessories: Williamson motor with connecting cable to reduction gear unit, electrical release Eagle, windmill bracket Eagle with handle for measuring airspeed, lever release Eagle cable, single-button release, Eagle hand drive unit, 2 spare glass pressure plates, protective plate, Williamson hand mount with diopter viewfinder and release, and Williamson mounting camera type 25 for vertical to oblique image sequences (rubber buffers for aircraft vibration damping are porous), as well as spare parts. All in 3 wooden crates and a cabinet, labeled "Geodetic Institute Denmark Eagle No. 4". Electrical components untested.

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)