细节
A brass surveying level,
signed on the telescope Baker, 244 Holborn, London, with rack and pinion focusing, ray-shade and dust slide, the limb on four-screw tripod attachment; and another brass surveying level, signed Hall Bros.
See Illustration (part lot) (2)
signed on the telescope Baker, 244 Holborn, London, with rack and pinion focusing, ray-shade and dust slide, the limb on four-screw tripod attachment; and another brass surveying level, signed Hall Bros.
See Illustration (part lot) (2)