With its wooden box and two telescopic mounts. The item is original, unrestored and not modified, slightly damaged near the screw of the foot. It has an original handwritten label (readable but not very clear) inside the box, with possible reference to the serial number and the date of production (1860).Supplied with a certificate of independent appraisal.Dimensions: length 33 x 31 x 13 height.Joseph Somalvico & Co. of Hatton Garden and Charles Street in London produced mathematical and philosophical instruments. This company worked from 1839 to 1913 ca.Bibliography: Gloria Clifton (1995), Repertorio dei produttori di strumenti scientifici britannici 1550-1851, page 259.