this tellurium (see associated picture) is only one of the great reasons to visit this museum

Attributed to Charles-François Delamarche c. 1800, Paris. Made of wood and brass

from the online exhibition of the museum located at this website http://brunelleschi.imss.fi.it/catalogo/

Copernican planetarium model to illustrate terrestrial and lunar revolutions around the Sun. Attributed to Charles-François Delamarche. The device can be hand-operated by means of a gear system to simulate the motions of the celestial bodies with varying degrees of approximation. Delamarche produced similar models in the early nineteenth century. There is a similar instrument in the collection of the Osservatorio Ximeniano, also in Florence.