細節
A brass 3-inch astronomical telescope,
signed on the back plate WATSON & SONS, 313 HIGH HOLBORN, LONDON No. 664, the 42½in. (108cm.) long body-tube with rack and pinion focusing, star finder, mounted on a tapering pillar support and mahogany tripod stand
See Illustration
signed on the back plate WATSON & SONS, 313 HIGH HOLBORN, LONDON No. 664, the 42½in. (108cm.) long body-tube with rack and pinion focusing, star finder, mounted on a tapering pillar support and mahogany tripod stand
See Illustration