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Extremely Rare Zeiss Marine-Glas Turret Binoculars - £1900

Antique Zeiss Marine-Glas Binoculars with Eyepiece turrets for 5X or 10X eyepieces. These extremely rare binoculars were made by Carl Zeiss Jena between 1898 and 1907. These glasses were designed by the famous Zeiss scientist Ernst Abbe in 1896 and the glasses are over 100 years old. The serial number is 235. The markings on the left turret are "Carl Zeiss, Jena." and "D.R.P". The markings on the right turret are "Marine-Glas mit Revolver" and "Veigr.-5&10". All four eyepieces have individual focus adjustment on them and there is no center focus control. The lubricant of the eyepiece focus adjustment is a little dried out (to be expected from glasses that are over 100 years old) so the adjustment is not as smooth as you might expect on newer binoculars. However, the eyepiece adjustments are fully usable. The turrets revolve smoothly with distinct click stops when the eyepieces are properly aligned with the optical path. The objective lenses (the front end lenses) are not marked but they are each about 27mm in diameter. The optics are uncoated but, of course lens coatings were not used on any optics until much later that these binoculars were made. The optics are quite clear with only some minor dust specks in the optical path. The binoculars are in excellent cosmetic condition with some brassing of the black-painted surfaces they have been handled the most. But only about 3 to 5% of the black-painted surfaces shows brassing. The original leather case is included with these binoculars. The leather hinge for the top is broken and the closure for the top is absent. These are historic and rare Zeiss binoculars that are fully usable but would probably be of most interest for the serious collector.
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post id: 7056987716

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