石鑫华视觉
绘图望远镜是戈瓦利在1811年发明的投影描绘器，是具有放大能力的望远镜。
Graphic Telescope, c. 1812
Signed: 'Cornelius Varley's Patent Graphic Telescope'.
A complex version of the previous instrument combining a low powered telescope with the camera lucida. Large graphic telescopes were mounted on tripods with telescopic legs. It was patented in 1811.
Height 150 mm, length 225 mm.
Inventory no. 60,279.
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