Stereoscope ‘The “Lothian” Stereoscope’ with Original Storage Box

The Loth­i­an Stere­o­scope was made in Scot­land. The lens­es are mount­ed on arms that can be moved apart and togeth­er to allow for inter-ocu­lar adjust­ment. Focus is achieved by slid­ing the stere­oview hold­er, sim­i­lar to the Holmes–Bates stere­o­scope. After remov­ing the slid­ing tubes and stere­oview hold­er, the view­er can be used to view stere­oviews in books.

(from: Com­pendi­um of Stereoscopes)