In this room we can see how, starting in the 18th century, scientific instruments entered the homes of the upper classes. The vogue for experimental science created a new market for instrument makers who, along with one-of-a-kind pieces produced for collectors, introduced a series of standard instruments furnished with kits of accessories. In the large display case, containing an antique vetrine from Lorraine times, are compound microscopes, reflecting telescopes and electrostatic machines, which were used in the domestic sphere for cultural entertainment and self-learning. Some instruments - splendid table clocks, elegant globes, finely decorated barometers and thermometers - became furnishing items, displayed as symbols of cultural and social status. Extravagant objects such as telescopes for ladies equipped with ivory cosmetic boxes, and telescopes for gentlemen disguised as walking sticks, could also be found in upper-class homes.