Description

This pair of binoculars, or opera glasses, has a folding brass cover for the objective lenses.  The cover is trimmed in brown leather.  The objectives are positioned by turning a knob that rotates the lenses from a horizontal to vertical position.  This permits the glasses to be folded to a very compact size.  The objective lenses are achromatic doublets, contained in brass cells.  Focusing is done with a central thumbwheel that adjusts the eye lens' positions.  It is marked "MADE IN FRANCE" between the objective lenses.