Bidspirit auction | Antique De Zeng-Standard Co. Ophthalmoscope

Antique De Zeng-Standard Co. Ophthalmoscope in Original Fitted Case - This is an early 20th-century ophthalmoscope manufactured by the De Zeng-Standard Co. of Camden, New Jersey. The instrument is a medical diagnostic tool designed for inspecting the retina and internal structures of the eye. It features a battery-handle design constructed of nickel-plated brass. The head is made of black-finished metal and composite components with integrated glass lenses and a rotating lens selection disc. The instrument is housed in its original fitted case of wood and board construction, featuring a textured black leatherette exterior and a purple velvet-lined interior. Markings include printed gold lettering on the case lid reading De Zeng-Standard Co. Camden, N. J. The handle is stamped near the base with DE ZENG-STANDARD CO. CAMDEN, N.J. PATS PENDING. The top of the rotating lens disc is stamped DE ZENG-STANDARD CO. MAKERS followed by patent dates including MAY 19, 03 and MAY 2, 1905. The disc also includes plus and minus indicators for the diopter lenses. The set appears to be a complete standalone unit as originally sold in this specific fitted case.Case: 9.5 inches L x 3 inches W x 2 inches H.