細節
A late 18th-Century 2-inch refracting telescope,
signed on the back plate TROUGHTON LONDON, the 29in. (73.7cm.) long tapering mahogany body-tube with object glass dust cap, rack and pinion focusing (defective), two-section draw-tube, on compass joint mounting with tapering pillar support and folding tripod stand, the cabriole legs terminating in pad feet
See Illustration
signed on the back plate TROUGHTON LONDON, the 29in. (73.7cm.) long tapering mahogany body-tube with object glass dust cap, rack and pinion focusing (defective), two-section draw-tube, on compass joint mounting with tapering pillar support and folding tripod stand, the cabriole legs terminating in pad feet
See Illustration