2-Inch Scale Working Model of a Burrell 8-Ton Road Roller

Brass, steel and cast iron, finished in dark red livery painting, builder's plaque: "Chas Burrell & Sons Limited Manufacturers Thetford, England", coal-fired silver-soldered copper boiler with steam pressure gauge, water sight glass, drains, regulator, fire box door and lever direction control, double-acting cylinder of 1 3/4 in. diameter, open crank motion with Stephenson's gearing, mechanical lubricator, solid disc flywheel 7 in. diameter, two-speed gearbox, fusee-and-chain steering to the front wheel, parking brake to the rear axle, wood canopy mounted on metal stays, overall length 34 in. - A detailed live-steam model with all its fixtures and fittings.

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)