Equatorially mounted refracting telescope with dome, 1914.
© Science Museum / Science & Society Picture Library
Coloured sectioned drawing showing a 24 inch (60 cm) aperture reflecting telescope with mounting inside its observatory building. These plans show the telescope ordered by the Chilean government for it Santiago Observatory. Due to the length of the tube and the position of the eyepiece, the floor of the observatory can rise and fall to offer a convenient observing position.