Terrestrial globe, + Horizontal ring & stand

Because of the discoveries of new countries and new celestial bodies, the demand for globes on which this information was visible, increased strongly. The beautifully designed globes were not only bought by collectors of scientific instruments, but were also used for educational purposes. At the beginning of the eighteenth century, Gerard Valk, together with his son Leonard, was the most important globe maker in the Netherlands. They made several earth and celestial globes of different sizes. Valk's globes were sold during the whole of the eighteenth century. This globe is (later) provided with a rotatable and tiltable horizon ring and a zenith pointer. With it, the horizon can be adjusted for different places on earth and the highest imaginary point in the sky can be shown. The axis is adjustable and at its foot is an hour dial, which indicates the difference in time at different places on earth. The rotatable and tiltable horizon ring with meridian circle, the zenith pointer and the axis with an hour dial at its foot, are additions from 1792 by H. van Laun and Son, Amsterdam.