A set of STEREO PRISM BINOCULARS by the well known London Maker ROSS & Co. From the information that I could find these stereo prism type binoculars were made from 1898 to 1900. The condition is excellent bar the replacement strap. They are 4 1/8" in length. No case. Andrew Ross (1798–1859) founded his company in 1830 and from 1840 he began producing camera lenses signed "A. Ross". During Andrew Ross's lifetime, the company was regarded as one of the foremost lens manufacturers. After Andrew's death in 1859 his son-in-law John Henry Dallmeyer left the firm to establish his own optical company and in 1860 and the company was run by Ross's son, Thomas, and became known as Ross & Co. By the 1890's the firm was also making Zeiss and Goerz lenses under licence for sale in the UK and the British Empire. Ross patented a Wide Angle lens design and Zeiss took this further to produce their EWA Protars. Prior to World War 1 Ross and Zeiss worked quite closely together, but at the outbreak of War the British Government put Ross in control of the newly opened Carl Zeiss binocular and optical factory in Mill Hill, London.
At Molloy's MEGA ANTIQUES CENTRE, Takapuna, Auckland, New Zealand
Specialists in Pacific Islands Items, Victoriana, And a Fascinating Range of General Collectibles