Armillary Sphere Ring
c. 1780

Amazing gold ring circa 1780, of interlocking hinged hoops which unfold into a miniature armillary sphere, with a crystal covered bezel containing a lock of hair. The interlocking hoops are concealed when the ring is closed. Armillary spheres were used to show the movement of the planets around the sun, but the ring would not have been usable as such and illustrates the interest in science in the 18th century.