Antique Chevalier Paris Mother of Pearl Opera Glasses – Brass Patina, Working Mechanism (c. - Dual barrel Galilean optics with central wheel focusing shaft - 1850-1900 - France - Chevalier #19th century #antique optics #brass patina #chevalier paris #collectible opera glasses #galilean binoculars #historic binoculars #mother-of-pearl #opera glasses #vintage optical instruments
