-40%
Large Nautical Telescope From the Mid to Late 1800s
$ 92.4
- Description
- Size Guide
Description
Large Nautical Telescope from the mid to late 1800sThis spyglass was probably carried on a wooden ship in the mid to late 1800s, as it is a Day and Night telescope with a brass main tube. The telescope is almost complete and has retained its objective cap but is missing its sliding eye lens cover. It is a very solid telescope, meaning the threads are good and the sunshield and large single brass draw opens smoothly. The small dents that are present have little functional impact.
Even the sliding cover in the objective cap moves smoothly and stays in place. With the slide open the outer objective is partially blocked, suggesting much of the objective surface is not used optically even when the cap is removed.
The main tube has been recovered in modern pigskin but the look is pretty authentic and the seam is not very visible and hard to photograph. I will try again, later.
The telescope has good optics and forms a sharp bright image of moderate magnification (12-15X) when focused by moving the smallest tube in and out. Nautical scopes were often made with less magnification than those intended for use on land, as a rocking ship makes high magnification challenging. On the plus side, lower magnification makes the scope easier for novices to use. For this telescope the eye needs to be positioned farther from the scope than one expects - probably also due to the rocking ship thing.
This is a large telescope that weighs more than 2 lbs, is almost 22 inches long when folded, 41 inches long when extended and has an objective lens is about 1 3/4 inches in diameter. It can be dissembled for cleaning if that should become necessary. Be sure to examine the images as they form an important part of the description.
Although shipping is listed as economy, items will generally be shipped priority if costs are comparable. I will consider sending the telescope to restricted countries if a buyer seems responsible and assumes shipping risks.