Isaac Newton's reflecting telescope Size:XS: 20 x 15cm The drawing represents the state

The drawing represents the state of the wreck between the operations of H

A staffage of workmen can be seen in the cofferdam with spectators on the balcony of the Fishmonger's Hall

Study of an energetic eruption with plumes of gas and ash

A satire on the Convention of Cintra of 1808

'The Chinese collection

Isaac Newton's reflecting telescope Size:XS: 20 x 15cm The drawing represents the stateIsaac Newton's reflecting telescope. The telescope consists of two tubes, one sliding inside the other to focus the mirrors. The tubes are made from layers of paper or cardboard and the upper tube is covered with a layer of decorative vellum. There are two eyepiece holes, one of which is blocked with cork. The inside of the tubes have been painted black and the secondary mirror is positioned inside. 1671