细节
A 19th-century brass 3-inch refracting telescope,
signed on the back plate W. HEATH PLYMOUTH, the 37¾in. (96cm.) long body-tube with rack and pinion focusing, on brass and iron tripod stand
signed on the back plate W. HEATH PLYMOUTH, the 37¾in. (96cm.) long body-tube with rack and pinion focusing, on brass and iron tripod stand