Antique opera / theatre binocular manufactured by Emil Busch A.G., Rathenow (Germany), one of the most important European optical manufacturers of the late 19th and early 20th century. This example is the “Thaliar” model with 3½x magnification, produced during the Belle Époque period (circa 1900–1915). It bears an original dealer engraving: P. W. Wheeldon 229 Boulevard Haussmann, Paris This confirms retail sale through a luxury Parisian optician, rather than a standard factory export version. The binocular features a brass construction with original aged patina, covered in genuine reptile leather (lizard-type), a premium material commonly used for high-end optical accessories of the period. The lot includes the original fitted reptile leather case with textile interior and original cord. Specifications: • Manufacturer: Emil Busch A.G. • Model: Thaliar • Magnification: 3½x • Serial number: No. 89195 • Period: circa 1900–1915 • Origin: Germany / Paris retail • Materials: brass, glass, reptile leather • Accessories: original case and cord Condition: Good original antique condition. All engravings are clear and legible. Leather covering remains intact. Focusing mechanism is functional. Signs of age and use are present, consistent with an authentic 100+ year old object. A refined and authentic example of Belle Époque luxury optical craftsmanship, suitable for collectors of antique scientific instruments, Art Nouveau period objects, or high-quality decorative display.