ANTIQUE VICTORIAN SINGLE DRAW OFFICER OF THE WATCH / MARINE TELESCOPE c. 1880

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ANTIQUE VICTORIAN SINGLE DRAW OFFICER OF THE WATCH / MARINE TELESCOPE c. 1880   Schryle-Huygens lens configuration.MAKER’S MARKS:   None apparentDESCRIPTION:Brass tube construction. It is in pretty original and unrestored condition. The single draw operates smoothly, thus enabling fairly precise focusing. Four lenses in traditional Schryle-Huygens configuration, are located in the single draw which also unscrews in the centre to provide access to Lenses 3 & 4. This central joint is virtually invisible, so fine is the machining of it. The end cap to the barrel houses the achromatic lens. Both the end cap and the lens housing have individual thread for disassembly.The swivelling cover is missing from the threaded eye-piece. When the eyepiece is removed, it provides access for cleaning to Lens 1 fitted in a threaded mount which is black coated on both sides.When unscrewed, the presence of Lens 2 in a fixed position in the first draw can be observed. It is cleanable from the eye-piece end. When the first draw is unscrewed in the middle at the virtually invisible precision threaded joint, access is gained to Lenses 3 & 4, which are located in a removable brass cartridge located in the first draw. When this cartridge is removed, access for cleaning to the other side of Lens 2 is also provided. Both lenses 3 & 4 are in threaded mounts, removable for cleaning.The Achromatic Objective lens measures 1 and 1/8th ” in diameter. Both component lenses of the achromatic lens are set in their own individual threaded mounts so they could easily be separated for cleaning purposes if required.CONDITION:All threads are good. There is no splitting to the tubes which move smoothly and there is no significant “play”in the movement. All lenses are present, undamaged and clear.The focusing is excellent and of a fairly high magnification.Excellent overall. It is a precision instrument in fine working order and disassembles easily for maintenance. Although it does not bear any maker’s marks, it has obviously been built to exacting Admiralty standards.FAULTS:
No dust slide to eyepiece. Possibly missing a brass push-on cover for the Objective lens since most telescopes of the period were equipped with covers of this type. Some minor indentations to both the draw and barrel. Minor, age-related scuffing to the leather covering of the barrel but the stitching to the leather is intact so it would polish up nicely
DIMENSIONS:

Fully retracted:  14.5″  /  37cm

Fully extended:  25.5″ / 65cm

WEIGHT: 478gSUMMARY:In good overall and original condition with the original stitching to the leather intact. None of the external brass sections have been cleaned. It is a high-precision instrument which functions well. It would make a good addition to any collection of period telescopes.
Please see my other listings for WW1 telescopes and earlier Georgian and Victorian telescopes.
It will be well packed and insulated to our usual high standards for fully insured delivery by Royal Mail Next Day Special Delivery within the UK or by Royal Mail International Signed-for services outside the UK.Only actual postal costs will be charged. Those shown here purely nominal. and other options may well be available. All buyers are therefore asked to wait for an Invoice before paying. Payment by PayPal only for overseas purchases, please.
For all enquiries or further details/photos, please contact the vendor:From within the UK            0 7557 237 539From Overseas:           00 44 75 57 23 75 39b.

Category: Cameras and Photography:Telescopes and Binoculars:Telescopes
Location: Guildford

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